include/sound/soc-dai.h - linux - Git at Google

 /* SPDX-License-Identifier: GPL-2.0
  *
  * linux/sound/soc-dai.h -- ALSA SoC Layer
  *
  * Copyright:	2005-2008 Wolfson Microelectronics. PLC.
  *
  * Digital Audio Interface (DAI) API.
  */

 #ifndef __LINUX_SND_SOC_DAI_H
 #define __LINUX_SND_SOC_DAI_H


 #include <linux/list.h>
 #include <sound/asoc.h>

 struct snd_pcm_substream;
 struct snd_soc_dapm_widget;
 struct snd_compr_stream;

 /*
  * DAI hardware audio formats.
  *
  * Describes the physical PCM data formating and clocking. Add new formats
  * to the end.
  */
 #define SND_SOC_DAIFMT_I2S		SND_SOC_DAI_FORMAT_I2S
 #define SND_SOC_DAIFMT_RIGHT_J		SND_SOC_DAI_FORMAT_RIGHT_J
 #define SND_SOC_DAIFMT_LEFT_J		SND_SOC_DAI_FORMAT_LEFT_J
 #define SND_SOC_DAIFMT_DSP_A		SND_SOC_DAI_FORMAT_DSP_A
 #define SND_SOC_DAIFMT_DSP_B		SND_SOC_DAI_FORMAT_DSP_B
 #define SND_SOC_DAIFMT_AC97		SND_SOC_DAI_FORMAT_AC97
 #define SND_SOC_DAIFMT_PDM		SND_SOC_DAI_FORMAT_PDM

 /* left and right justified also known as MSB and LSB respectively */
 #define SND_SOC_DAIFMT_MSB		SND_SOC_DAIFMT_LEFT_J
 #define SND_SOC_DAIFMT_LSB		SND_SOC_DAIFMT_RIGHT_J

 /* Describes the possible PCM format */
 /*
  * use SND_SOC_DAI_FORMAT_xx as eash shift.
  * see
  *	snd_soc_runtime_get_dai_fmt()
  */
 #define SND_SOC_POSSIBLE_DAIFMT_FORMAT_SHIFT	0
 #define SND_SOC_POSSIBLE_DAIFMT_FORMAT_MASK	(0xFFFF << SND_SOC_POSSIBLE_DAIFMT_FORMAT_SHIFT)
 #define SND_SOC_POSSIBLE_DAIFMT_I2S		(1 << SND_SOC_DAI_FORMAT_I2S)
 #define SND_SOC_POSSIBLE_DAIFMT_RIGHT_J		(1 << SND_SOC_DAI_FORMAT_RIGHT_J)
 #define SND_SOC_POSSIBLE_DAIFMT_LEFT_J		(1 << SND_SOC_DAI_FORMAT_LEFT_J)
 #define SND_SOC_POSSIBLE_DAIFMT_DSP_A		(1 << SND_SOC_DAI_FORMAT_DSP_A)
 #define SND_SOC_POSSIBLE_DAIFMT_DSP_B		(1 << SND_SOC_DAI_FORMAT_DSP_B)
 #define SND_SOC_POSSIBLE_DAIFMT_AC97		(1 << SND_SOC_DAI_FORMAT_AC97)
 #define SND_SOC_POSSIBLE_DAIFMT_PDM		(1 << SND_SOC_DAI_FORMAT_PDM)

 /*
  * DAI Clock gating.
  *
  * DAI bit clocks can be gated (disabled) when the DAI is not
  * sending or receiving PCM data in a frame. This can be used to save power.
  */
 #define SND_SOC_DAIFMT_CONT		(1 << 4) /* continuous clock */
 #define SND_SOC_DAIFMT_GATED		(0 << 4) /* clock is gated */

 /* Describes the possible PCM format */
 /*
  * define GATED -> CONT. GATED will be selected if both are selected.
  * see
  *	snd_soc_runtime_get_dai_fmt()
  */
 #define SND_SOC_POSSIBLE_DAIFMT_CLOCK_SHIFT	16
 #define SND_SOC_POSSIBLE_DAIFMT_CLOCK_MASK	(0xFFFF	<< SND_SOC_POSSIBLE_DAIFMT_CLOCK_SHIFT)
 #define SND_SOC_POSSIBLE_DAIFMT_GATED		(0x1ULL	<< SND_SOC_POSSIBLE_DAIFMT_CLOCK_SHIFT)
 #define SND_SOC_POSSIBLE_DAIFMT_CONT		(0x2ULL	<< SND_SOC_POSSIBLE_DAIFMT_CLOCK_SHIFT)

 /*
  * DAI hardware signal polarity.
  *
  * Specifies whether the DAI can also support inverted clocks for the specified
  * format.
  *
  * BCLK:
  * - "normal" polarity means signal is available at rising edge of BCLK
  * - "inverted" polarity means signal is available at falling edge of BCLK
  *
  * FSYNC "normal" polarity depends on the frame format:
  * - I2S: frame consists of left then right channel data. Left channel starts
  *      with falling FSYNC edge, right channel starts with rising FSYNC edge.
  * - Left/Right Justified: frame consists of left then right channel data.
  *      Left channel starts with rising FSYNC edge, right channel starts with
  *      falling FSYNC edge.
  * - DSP A/B: Frame starts with rising FSYNC edge.
  * - AC97: Frame starts with rising FSYNC edge.
  *
  * "Negative" FSYNC polarity is the one opposite of "normal" polarity.
  */
 #define SND_SOC_DAIFMT_NB_NF		(0 << 8) /* normal bit clock + frame */
 #define SND_SOC_DAIFMT_NB_IF		(2 << 8) /* normal BCLK + inv FRM */
 #define SND_SOC_DAIFMT_IB_NF		(3 << 8) /* invert BCLK + nor FRM */
 #define SND_SOC_DAIFMT_IB_IF		(4 << 8) /* invert BCLK + FRM */

 /* Describes the possible PCM format */
 #define SND_SOC_POSSIBLE_DAIFMT_INV_SHIFT	32
 #define SND_SOC_POSSIBLE_DAIFMT_INV_MASK	(0xFFFFULL << SND_SOC_POSSIBLE_DAIFMT_INV_SHIFT)
 #define SND_SOC_POSSIBLE_DAIFMT_NB_NF		(0x1ULL    << SND_SOC_POSSIBLE_DAIFMT_INV_SHIFT)
 #define SND_SOC_POSSIBLE_DAIFMT_NB_IF		(0x2ULL    << SND_SOC_POSSIBLE_DAIFMT_INV_SHIFT)
 #define SND_SOC_POSSIBLE_DAIFMT_IB_NF		(0x4ULL    << SND_SOC_POSSIBLE_DAIFMT_INV_SHIFT)
 #define SND_SOC_POSSIBLE_DAIFMT_IB_IF		(0x8ULL    << SND_SOC_POSSIBLE_DAIFMT_INV_SHIFT)

 /*
  * DAI hardware clock providers/consumers
  *
  * This is wrt the codec, the inverse is true for the interface
  * i.e. if the codec is clk and FRM provider then the interface is
  * clk and frame consumer.
  */
 #define SND_SOC_DAIFMT_CBP_CFP		(1 << 12) /* codec clk provider & frame provider */
 #define SND_SOC_DAIFMT_CBC_CFP		(2 << 12) /* codec clk consumer & frame provider */
 #define SND_SOC_DAIFMT_CBP_CFC		(3 << 12) /* codec clk provider & frame consumer */
 #define SND_SOC_DAIFMT_CBC_CFC		(4 << 12) /* codec clk consumer & frame consumer */

 /* previous definitions kept for backwards-compatibility, do not use in new contributions */
 #define SND_SOC_DAIFMT_CBM_CFM		SND_SOC_DAIFMT_CBP_CFP
 #define SND_SOC_DAIFMT_CBS_CFM		SND_SOC_DAIFMT_CBC_CFP
 #define SND_SOC_DAIFMT_CBM_CFS		SND_SOC_DAIFMT_CBP_CFC
 #define SND_SOC_DAIFMT_CBS_CFS		SND_SOC_DAIFMT_CBC_CFC

 /* Describes the possible PCM format */
 #define SND_SOC_POSSIBLE_DAIFMT_CLOCK_PROVIDER_SHIFT	48
 #define SND_SOC_POSSIBLE_DAIFMT_CLOCK_PROVIDER_MASK	(0xFFFFULL << SND_SOC_POSSIBLE_DAIFMT_CLOCK_PROVIDER_SHIFT)
 #define SND_SOC_POSSIBLE_DAIFMT_CBP_CFP			(0x1ULL    << SND_SOC_POSSIBLE_DAIFMT_CLOCK_PROVIDER_SHIFT)
 #define SND_SOC_POSSIBLE_DAIFMT_CBC_CFP			(0x2ULL    << SND_SOC_POSSIBLE_DAIFMT_CLOCK_PROVIDER_SHIFT)
 #define SND_SOC_POSSIBLE_DAIFMT_CBP_CFC			(0x4ULL    << SND_SOC_POSSIBLE_DAIFMT_CLOCK_PROVIDER_SHIFT)
 #define SND_SOC_POSSIBLE_DAIFMT_CBC_CFC			(0x8ULL    << SND_SOC_POSSIBLE_DAIFMT_CLOCK_PROVIDER_SHIFT)

 #define SND_SOC_DAIFMT_FORMAT_MASK		0x000f
 #define SND_SOC_DAIFMT_CLOCK_MASK		0x00f0
 #define SND_SOC_DAIFMT_INV_MASK			0x0f00
 #define SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK	0xf000

 #define SND_SOC_DAIFMT_MASTER_MASK	SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK

 /*
  * Master Clock Directions
  */
 #define SND_SOC_CLOCK_IN		0
 #define SND_SOC_CLOCK_OUT		1

 #define SND_SOC_STD_AC97_FMTS (SNDRV_PCM_FMTBIT_S8 |\
 			       SNDRV_PCM_FMTBIT_S16_LE |\
 			       SNDRV_PCM_FMTBIT_S16_BE |\
 			       SNDRV_PCM_FMTBIT_S20_3LE |\
 			       SNDRV_PCM_FMTBIT_S20_3BE |\
 			       SNDRV_PCM_FMTBIT_S20_LE |\
 			       SNDRV_PCM_FMTBIT_S20_BE |\
 			       SNDRV_PCM_FMTBIT_S24_3LE |\
 			       SNDRV_PCM_FMTBIT_S24_3BE |\
                                SNDRV_PCM_FMTBIT_S32_LE |\
                                SNDRV_PCM_FMTBIT_S32_BE)

 struct snd_soc_dai_driver;
 struct snd_soc_dai;
 struct snd_ac97_bus_ops;

 /* Digital Audio Interface clocking API.*/
 int snd_soc_dai_set_sysclk(struct snd_soc_dai *dai, int clk_id,
 	unsigned int freq, int dir);

 int snd_soc_dai_set_clkdiv(struct snd_soc_dai *dai,
 	int div_id, int div);

 int snd_soc_dai_set_pll(struct snd_soc_dai *dai,
 	int pll_id, int source, unsigned int freq_in, unsigned int freq_out);

 int snd_soc_dai_set_bclk_ratio(struct snd_soc_dai *dai, unsigned int ratio);

 /* Digital Audio interface formatting */
 int snd_soc_dai_get_fmt_max_priority(struct snd_soc_pcm_runtime *rtd);
 u64 snd_soc_dai_get_fmt(struct snd_soc_dai *dai, int priority);
 int snd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt);

 int snd_soc_dai_set_tdm_slot(struct snd_soc_dai *dai,
 	unsigned int tx_mask, unsigned int rx_mask, int slots, int slot_width);

 int snd_soc_dai_set_channel_map(struct snd_soc_dai *dai,
 	unsigned int tx_num, unsigned int *tx_slot,
 	unsigned int rx_num, unsigned int *rx_slot);

 int snd_soc_dai_set_tristate(struct snd_soc_dai *dai, int tristate);

 /* Digital Audio Interface mute */
 int snd_soc_dai_digital_mute(struct snd_soc_dai *dai, int mute,
 			     int direction);


 int snd_soc_dai_get_channel_map(struct snd_soc_dai *dai,
 		unsigned int *tx_num, unsigned int *tx_slot,
 		unsigned int *rx_num, unsigned int *rx_slot);

 int snd_soc_dai_is_dummy(struct snd_soc_dai *dai);

 int snd_soc_dai_hw_params(struct snd_soc_dai *dai,
 			  struct snd_pcm_substream *substream,
 			  struct snd_pcm_hw_params *params);
 void snd_soc_dai_hw_free(struct snd_soc_dai *dai,
 			 struct snd_pcm_substream *substream,
 			 int rollback);
 int snd_soc_dai_startup(struct snd_soc_dai *dai,
 			struct snd_pcm_substream *substream);
 void snd_soc_dai_shutdown(struct snd_soc_dai *dai,
 			  struct snd_pcm_substream *substream, int rollback);
 snd_pcm_sframes_t snd_soc_dai_delay(struct snd_soc_dai *dai,
 				    struct snd_pcm_substream *substream);
 void snd_soc_dai_suspend(struct snd_soc_dai *dai);
 void snd_soc_dai_resume(struct snd_soc_dai *dai);
 int snd_soc_dai_compress_new(struct snd_soc_dai *dai,
 			     struct snd_soc_pcm_runtime *rtd, int num);
 bool snd_soc_dai_stream_valid(struct snd_soc_dai *dai, int stream);
 void snd_soc_dai_link_set_capabilities(struct snd_soc_dai_link *dai_link);
 void snd_soc_dai_action(struct snd_soc_dai *dai,
 			int stream, int action);
 static inline void snd_soc_dai_activate(struct snd_soc_dai *dai,
 					int stream)
 {
 	snd_soc_dai_action(dai, stream,  1);
 }
 static inline void snd_soc_dai_deactivate(struct snd_soc_dai *dai,
 					  int stream)
 {
 	snd_soc_dai_action(dai, stream, -1);
 }
 int snd_soc_dai_active(struct snd_soc_dai *dai);

 int snd_soc_pcm_dai_probe(struct snd_soc_pcm_runtime *rtd, int order);
 int snd_soc_pcm_dai_remove(struct snd_soc_pcm_runtime *rtd, int order);
 int snd_soc_pcm_dai_new(struct snd_soc_pcm_runtime *rtd);
 int snd_soc_pcm_dai_prepare(struct snd_pcm_substream *substream);
 int snd_soc_pcm_dai_trigger(struct snd_pcm_substream *substream, int cmd,
 			    int rollback);
 int snd_soc_pcm_dai_bespoke_trigger(struct snd_pcm_substream *substream,
 				    int cmd);

 int snd_soc_dai_compr_startup(struct snd_soc_dai *dai,
 			      struct snd_compr_stream *cstream);
 void snd_soc_dai_compr_shutdown(struct snd_soc_dai *dai,
 				struct snd_compr_stream *cstream,
 				int rollback);
 int snd_soc_dai_compr_trigger(struct snd_soc_dai *dai,
 			      struct snd_compr_stream *cstream, int cmd);
 int snd_soc_dai_compr_set_params(struct snd_soc_dai *dai,
 				 struct snd_compr_stream *cstream,
 				 struct snd_compr_params *params);
 int snd_soc_dai_compr_get_params(struct snd_soc_dai *dai,
 				 struct snd_compr_stream *cstream,
 				 struct snd_codec *params);
 int snd_soc_dai_compr_ack(struct snd_soc_dai *dai,
 			  struct snd_compr_stream *cstream,
 			  size_t bytes);
 int snd_soc_dai_compr_pointer(struct snd_soc_dai *dai,
 			      struct snd_compr_stream *cstream,
 			      struct snd_compr_tstamp *tstamp);
 int snd_soc_dai_compr_set_metadata(struct snd_soc_dai *dai,
 				   struct snd_compr_stream *cstream,
 				   struct snd_compr_metadata *metadata);
 int snd_soc_dai_compr_get_metadata(struct snd_soc_dai *dai,
 				   struct snd_compr_stream *cstream,
 				   struct snd_compr_metadata *metadata);

 struct snd_soc_dai_ops {
 	/*
 	 * DAI clocking configuration, all optional.
 	 * Called by soc_card drivers, normally in their hw_params.
 	 */
 	int (*set_sysclk)(struct snd_soc_dai *dai,
 		int clk_id, unsigned int freq, int dir);
 	int (*set_pll)(struct snd_soc_dai *dai, int pll_id, int source,
 		unsigned int freq_in, unsigned int freq_out);
 	int (*set_clkdiv)(struct snd_soc_dai *dai, int div_id, int div);
 	int (*set_bclk_ratio)(struct snd_soc_dai *dai, unsigned int ratio);

 	/*
 	 * DAI format configuration
 	 * Called by soc_card drivers, normally in their hw_params.
 	 */
 	int (*set_fmt)(struct snd_soc_dai *dai, unsigned int fmt);
 	int (*xlate_tdm_slot_mask)(unsigned int slots,
 		unsigned int *tx_mask, unsigned int *rx_mask);
 	int (*set_tdm_slot)(struct snd_soc_dai *dai,
 		unsigned int tx_mask, unsigned int rx_mask,
 		int slots, int slot_width);
 	int (*set_channel_map)(struct snd_soc_dai *dai,
 		unsigned int tx_num, unsigned int *tx_slot,
 		unsigned int rx_num, unsigned int *rx_slot);
 	int (*get_channel_map)(struct snd_soc_dai *dai,
 			unsigned int *tx_num, unsigned int *tx_slot,
 			unsigned int *rx_num, unsigned int *rx_slot);
 	int (*set_tristate)(struct snd_soc_dai *dai, int tristate);

 	int (*set_sdw_stream)(struct snd_soc_dai *dai,
 			void *stream, int direction);
 	void *(*get_sdw_stream)(struct snd_soc_dai *dai, int direction);

 	/*
 	 * DAI digital mute - optional.
 	 * Called by soc-core to minimise any pops.
 	 */
 	int (*mute_stream)(struct snd_soc_dai *dai, int mute, int stream);

 	/*
 	 * ALSA PCM audio operations - all optional.
 	 * Called by soc-core during audio PCM operations.
 	 */
 	int (*startup)(struct snd_pcm_substream *,
 		struct snd_soc_dai *);
 	void (*shutdown)(struct snd_pcm_substream *,
 		struct snd_soc_dai *);
 	int (*hw_params)(struct snd_pcm_substream *,
 		struct snd_pcm_hw_params *, struct snd_soc_dai *);
 	int (*hw_free)(struct snd_pcm_substream *,
 		struct snd_soc_dai *);
 	int (*prepare)(struct snd_pcm_substream *,
 		struct snd_soc_dai *);
 	/*
 	 * NOTE: Commands passed to the trigger function are not necessarily
 	 * compatible with the current state of the dai. For example this
 	 * sequence of commands is possible: START STOP STOP.
 	 * So do not unconditionally use refcounting functions in the trigger
 	 * function, e.g. clk_enable/disable.
 	 */
 	int (*trigger)(struct snd_pcm_substream *, int,
 		struct snd_soc_dai *);
 	int (*bespoke_trigger)(struct snd_pcm_substream *, int,
 		struct snd_soc_dai *);
 	/*
 	 * For hardware based FIFO caused delay reporting.
 	 * Optional.
 	 */
 	snd_pcm_sframes_t (*delay)(struct snd_pcm_substream *,
 		struct snd_soc_dai *);

 	/*
 	 * Format list for auto selection.
 	 * Format will be increased if priority format was
 	 * not selected.
 	 * see
 	 *	snd_soc_dai_get_fmt()
 	 */
 	u64 *auto_selectable_formats;
 	int num_auto_selectable_formats;

 	/* bit field */
 	unsigned int no_capture_mute:1;
 };

 struct snd_soc_cdai_ops {
 	/*
 	 * for compress ops
 	 */
 	int (*startup)(struct snd_compr_stream *,
 			struct snd_soc_dai *);
 	int (*shutdown)(struct snd_compr_stream *,
 			struct snd_soc_dai *);
 	int (*set_params)(struct snd_compr_stream *,
 			struct snd_compr_params *, struct snd_soc_dai *);
 	int (*get_params)(struct snd_compr_stream *,
 			struct snd_codec *, struct snd_soc_dai *);
 	int (*set_metadata)(struct snd_compr_stream *,
 			struct snd_compr_metadata *, struct snd_soc_dai *);
 	int (*get_metadata)(struct snd_compr_stream *,
 			struct snd_compr_metadata *, struct snd_soc_dai *);
 	int (*trigger)(struct snd_compr_stream *, int,
 			struct snd_soc_dai *);
 	int (*pointer)(struct snd_compr_stream *,
 			struct snd_compr_tstamp *, struct snd_soc_dai *);
 	int (*ack)(struct snd_compr_stream *, size_t,
 			struct snd_soc_dai *);
 };

 /*
  * Digital Audio Interface Driver.
  *
  * Describes the Digital Audio Interface in terms of its ALSA, DAI and AC97
  * operations and capabilities. Codec and platform drivers will register this
  * structure for every DAI they have.
  *
  * This structure covers the clocking, formating and ALSA operations for each
  * interface.
  */
 struct snd_soc_dai_driver {
 	/* DAI description */
 	const char *name;
 	unsigned int id;
 	unsigned int base;
 	struct snd_soc_dobj dobj;

 	/* DAI driver callbacks */
 	int (*probe)(struct snd_soc_dai *dai);
 	int (*remove)(struct snd_soc_dai *dai);
 	/* compress dai */
 	int (*compress_new)(struct snd_soc_pcm_runtime *rtd, int num);
 	/* Optional Callback used at pcm creation*/
 	int (*pcm_new)(struct snd_soc_pcm_runtime *rtd,
 		       struct snd_soc_dai *dai);

 	/* ops */
 	const struct snd_soc_dai_ops *ops;
 	const struct snd_soc_cdai_ops *cops;

 	/* DAI capabilities */
 	struct snd_soc_pcm_stream capture;
 	struct snd_soc_pcm_stream playback;
 	unsigned int symmetric_rate:1;
 	unsigned int symmetric_channels:1;
 	unsigned int symmetric_sample_bits:1;

 	/* probe ordering - for components with runtime dependencies */
 	int probe_order;
 	int remove_order;
 };

 /*
  * Digital Audio Interface runtime data.
  *
  * Holds runtime data for a DAI.
  */
 struct snd_soc_dai {
 	const char *name;
 	int id;
 	struct device *dev;

 	/* driver ops */
 	struct snd_soc_dai_driver *driver;

 	/* DAI runtime info */
 	unsigned int stream_active[SNDRV_PCM_STREAM_LAST + 1]; /* usage count */

 	struct snd_soc_dapm_widget *playback_widget;
 	struct snd_soc_dapm_widget *capture_widget;

 	/* DAI DMA data */
 	void *playback_dma_data;
 	void *capture_dma_data;

 	/* Symmetry data - only valid if symmetry is being enforced */
 	unsigned int rate;
 	unsigned int channels;
 	unsigned int sample_bits;

 	/* parent platform/codec */
 	struct snd_soc_component *component;

 	/* CODEC TDM slot masks and params (for fixup) */
 	unsigned int tx_mask;
 	unsigned int rx_mask;

 	struct list_head list;

 	/* function mark */
 	struct snd_pcm_substream *mark_startup;
 	struct snd_pcm_substream *mark_hw_params;
 	struct snd_pcm_substream *mark_trigger;
 	struct snd_compr_stream  *mark_compr_startup;

 	/* bit field */
 	unsigned int probed:1;
 };

 static inline struct snd_soc_pcm_stream *
 snd_soc_dai_get_pcm_stream(const struct snd_soc_dai *dai, int stream)
 {
 	return (stream == SNDRV_PCM_STREAM_PLAYBACK) ?
 		&dai->driver->playback : &dai->driver->capture;
 }

 static inline
 struct snd_soc_dapm_widget *snd_soc_dai_get_widget(
 	struct snd_soc_dai *dai, int stream)
 {
 	return (stream == SNDRV_PCM_STREAM_PLAYBACK) ?
 		dai->playback_widget : dai->capture_widget;
 }

 static inline void *snd_soc_dai_get_dma_data(const struct snd_soc_dai *dai,
 					     const struct snd_pcm_substream *ss)
 {
 	return (ss->stream == SNDRV_PCM_STREAM_PLAYBACK) ?
 		dai->playback_dma_data : dai->capture_dma_data;
 }

 static inline void snd_soc_dai_set_dma_data(struct snd_soc_dai *dai,
 					    const struct snd_pcm_substream *ss,
 					    void *data)
 {
 	if (ss->stream == SNDRV_PCM_STREAM_PLAYBACK)
 		dai->playback_dma_data = data;
 	else
 		dai->capture_dma_data = data;
 }

 static inline void snd_soc_dai_init_dma_data(struct snd_soc_dai *dai,
 					     void *playback, void *capture)
 {
 	dai->playback_dma_data = playback;
 	dai->capture_dma_data = capture;
 }

 static inline void snd_soc_dai_set_drvdata(struct snd_soc_dai *dai,
 		void *data)
 {
 	dev_set_drvdata(dai->dev, data);
 }

 static inline void *snd_soc_dai_get_drvdata(struct snd_soc_dai *dai)
 {
 	return dev_get_drvdata(dai->dev);
 }

 /**
  * snd_soc_dai_set_sdw_stream() - Configures a DAI for SDW stream operation
  * @dai: DAI
  * @stream: STREAM
  * @direction: Stream direction(Playback/Capture)
  * SoundWire subsystem doesn't have a notion of direction and we reuse
  * the ASoC stream direction to configure sink/source ports.
  * Playback maps to source ports and Capture for sink ports.
  *
  * This should be invoked with NULL to clear the stream set previously.
  * Returns 0 on success, a negative error code otherwise.
  */
 static inline int snd_soc_dai_set_sdw_stream(struct snd_soc_dai *dai,
 				void *stream, int direction)
 {
 	if (dai->driver->ops->set_sdw_stream)
 		return dai->driver->ops->set_sdw_stream(dai, stream, direction);
 	else
 		return -ENOTSUPP;
 }

 /**
  * snd_soc_dai_get_sdw_stream() - Retrieves SDW stream from DAI
  * @dai: DAI
  * @direction: Stream direction(Playback/Capture)
  *
  * This routine only retrieves that was previously configured
  * with snd_soc_dai_get_sdw_stream()
  *
  * Returns pointer to stream or an ERR_PTR value, e.g.
  * ERR_PTR(-ENOTSUPP) if callback is not supported;
  */
 static inline void *snd_soc_dai_get_sdw_stream(struct snd_soc_dai *dai,
 					       int direction)
 {
 	if (dai->driver->ops->get_sdw_stream)
 		return dai->driver->ops->get_sdw_stream(dai, direction);
 	else
 		return ERR_PTR(-ENOTSUPP);
 }

 static inline unsigned int
 snd_soc_dai_stream_active(struct snd_soc_dai *dai, int stream)
 {
 	return dai->stream_active[stream];
 }

 #endif
	/* SPDX-License-Identifier: GPL-2.0
	*
	* linux/sound/soc-dai.h -- ALSA SoC Layer
	*
	* Copyright: 2005-2008 Wolfson Microelectronics. PLC.
	*
	* Digital Audio Interface (DAI) API.
	*/

	#ifndef __LINUX_SND_SOC_DAI_H
	#define __LINUX_SND_SOC_DAI_H


	#include <linux/list.h>
	#include <sound/asoc.h>

	struct snd_pcm_substream;
	struct snd_soc_dapm_widget;
	struct snd_compr_stream;

	/*
	* DAI hardware audio formats.
	*
	* Describes the physical PCM data formating and clocking. Add new formats
	* to the end.
	*/
	#define SND_SOC_DAIFMT_I2S SND_SOC_DAI_FORMAT_I2S
	#define SND_SOC_DAIFMT_RIGHT_J SND_SOC_DAI_FORMAT_RIGHT_J
	#define SND_SOC_DAIFMT_LEFT_J SND_SOC_DAI_FORMAT_LEFT_J
	#define SND_SOC_DAIFMT_DSP_A SND_SOC_DAI_FORMAT_DSP_A
	#define SND_SOC_DAIFMT_DSP_B SND_SOC_DAI_FORMAT_DSP_B
	#define SND_SOC_DAIFMT_AC97 SND_SOC_DAI_FORMAT_AC97
	#define SND_SOC_DAIFMT_PDM SND_SOC_DAI_FORMAT_PDM

	/* left and right justified also known as MSB and LSB respectively */
	#define SND_SOC_DAIFMT_MSB SND_SOC_DAIFMT_LEFT_J
	#define SND_SOC_DAIFMT_LSB SND_SOC_DAIFMT_RIGHT_J

	/* Describes the possible PCM format */
	/*
	* use SND_SOC_DAI_FORMAT_xx as eash shift.
	* see
	* snd_soc_runtime_get_dai_fmt()
	*/
	#define SND_SOC_POSSIBLE_DAIFMT_FORMAT_SHIFT 0
	#define SND_SOC_POSSIBLE_DAIFMT_FORMAT_MASK (0xFFFF << SND_SOC_POSSIBLE_DAIFMT_FORMAT_SHIFT)
	#define SND_SOC_POSSIBLE_DAIFMT_I2S (1 << SND_SOC_DAI_FORMAT_I2S)
	#define SND_SOC_POSSIBLE_DAIFMT_RIGHT_J (1 << SND_SOC_DAI_FORMAT_RIGHT_J)
	#define SND_SOC_POSSIBLE_DAIFMT_LEFT_J (1 << SND_SOC_DAI_FORMAT_LEFT_J)
	#define SND_SOC_POSSIBLE_DAIFMT_DSP_A (1 << SND_SOC_DAI_FORMAT_DSP_A)
	#define SND_SOC_POSSIBLE_DAIFMT_DSP_B (1 << SND_SOC_DAI_FORMAT_DSP_B)
	#define SND_SOC_POSSIBLE_DAIFMT_AC97 (1 << SND_SOC_DAI_FORMAT_AC97)
	#define SND_SOC_POSSIBLE_DAIFMT_PDM (1 << SND_SOC_DAI_FORMAT_PDM)

	/*
	* DAI Clock gating.
	*
	* DAI bit clocks can be gated (disabled) when the DAI is not
	* sending or receiving PCM data in a frame. This can be used to save power.
	*/
	#define SND_SOC_DAIFMT_CONT (1 << 4) /* continuous clock */
	#define SND_SOC_DAIFMT_GATED (0 << 4) /* clock is gated */

	/* Describes the possible PCM format */
	/*
	* define GATED -> CONT. GATED will be selected if both are selected.
	* see
	* snd_soc_runtime_get_dai_fmt()
	*/
	#define SND_SOC_POSSIBLE_DAIFMT_CLOCK_SHIFT 16
	#define SND_SOC_POSSIBLE_DAIFMT_CLOCK_MASK (0xFFFF << SND_SOC_POSSIBLE_DAIFMT_CLOCK_SHIFT)
	#define SND_SOC_POSSIBLE_DAIFMT_GATED (0x1ULL << SND_SOC_POSSIBLE_DAIFMT_CLOCK_SHIFT)
	#define SND_SOC_POSSIBLE_DAIFMT_CONT (0x2ULL << SND_SOC_POSSIBLE_DAIFMT_CLOCK_SHIFT)

	/*
	* DAI hardware signal polarity.
	*
	* Specifies whether the DAI can also support inverted clocks for the specified
	* format.
	*
	* BCLK:
	* - "normal" polarity means signal is available at rising edge of BCLK
	* - "inverted" polarity means signal is available at falling edge of BCLK
	*
	* FSYNC "normal" polarity depends on the frame format:
	* - I2S: frame consists of left then right channel data. Left channel starts
	* with falling FSYNC edge, right channel starts with rising FSYNC edge.
	* - Left/Right Justified: frame consists of left then right channel data.
	* Left channel starts with rising FSYNC edge, right channel starts with
	* falling FSYNC edge.
	* - DSP A/B: Frame starts with rising FSYNC edge.
	* - AC97: Frame starts with rising FSYNC edge.
	*
	* "Negative" FSYNC polarity is the one opposite of "normal" polarity.
	*/
	#define SND_SOC_DAIFMT_NB_NF (0 << 8) /* normal bit clock + frame */
	#define SND_SOC_DAIFMT_NB_IF (2 << 8) /* normal BCLK + inv FRM */
	#define SND_SOC_DAIFMT_IB_NF (3 << 8) /* invert BCLK + nor FRM */
	#define SND_SOC_DAIFMT_IB_IF (4 << 8) /* invert BCLK + FRM */

	/* Describes the possible PCM format */
	#define SND_SOC_POSSIBLE_DAIFMT_INV_SHIFT 32
	#define SND_SOC_POSSIBLE_DAIFMT_INV_MASK (0xFFFFULL << SND_SOC_POSSIBLE_DAIFMT_INV_SHIFT)
	#define SND_SOC_POSSIBLE_DAIFMT_NB_NF (0x1ULL << SND_SOC_POSSIBLE_DAIFMT_INV_SHIFT)
	#define SND_SOC_POSSIBLE_DAIFMT_NB_IF (0x2ULL << SND_SOC_POSSIBLE_DAIFMT_INV_SHIFT)
	#define SND_SOC_POSSIBLE_DAIFMT_IB_NF (0x4ULL << SND_SOC_POSSIBLE_DAIFMT_INV_SHIFT)
	#define SND_SOC_POSSIBLE_DAIFMT_IB_IF (0x8ULL << SND_SOC_POSSIBLE_DAIFMT_INV_SHIFT)

	/*
	* DAI hardware clock providers/consumers
	*
	* This is wrt the codec, the inverse is true for the interface
	* i.e. if the codec is clk and FRM provider then the interface is
	* clk and frame consumer.
	*/
	#define SND_SOC_DAIFMT_CBP_CFP (1 << 12) /* codec clk provider & frame provider */
	#define SND_SOC_DAIFMT_CBC_CFP (2 << 12) /* codec clk consumer & frame provider */
	#define SND_SOC_DAIFMT_CBP_CFC (3 << 12) /* codec clk provider & frame consumer */
	#define SND_SOC_DAIFMT_CBC_CFC (4 << 12) /* codec clk consumer & frame consumer */

	/* previous definitions kept for backwards-compatibility, do not use in new contributions */
	#define SND_SOC_DAIFMT_CBM_CFM SND_SOC_DAIFMT_CBP_CFP
	#define SND_SOC_DAIFMT_CBS_CFM SND_SOC_DAIFMT_CBC_CFP
	#define SND_SOC_DAIFMT_CBM_CFS SND_SOC_DAIFMT_CBP_CFC
	#define SND_SOC_DAIFMT_CBS_CFS SND_SOC_DAIFMT_CBC_CFC

	/* Describes the possible PCM format */
	#define SND_SOC_POSSIBLE_DAIFMT_CLOCK_PROVIDER_SHIFT 48
	#define SND_SOC_POSSIBLE_DAIFMT_CLOCK_PROVIDER_MASK (0xFFFFULL << SND_SOC_POSSIBLE_DAIFMT_CLOCK_PROVIDER_SHIFT)
	#define SND_SOC_POSSIBLE_DAIFMT_CBP_CFP (0x1ULL << SND_SOC_POSSIBLE_DAIFMT_CLOCK_PROVIDER_SHIFT)
	#define SND_SOC_POSSIBLE_DAIFMT_CBC_CFP (0x2ULL << SND_SOC_POSSIBLE_DAIFMT_CLOCK_PROVIDER_SHIFT)
	#define SND_SOC_POSSIBLE_DAIFMT_CBP_CFC (0x4ULL << SND_SOC_POSSIBLE_DAIFMT_CLOCK_PROVIDER_SHIFT)
	#define SND_SOC_POSSIBLE_DAIFMT_CBC_CFC (0x8ULL << SND_SOC_POSSIBLE_DAIFMT_CLOCK_PROVIDER_SHIFT)

	#define SND_SOC_DAIFMT_FORMAT_MASK 0x000f
	#define SND_SOC_DAIFMT_CLOCK_MASK 0x00f0
	#define SND_SOC_DAIFMT_INV_MASK 0x0f00
	#define SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK 0xf000

	#define SND_SOC_DAIFMT_MASTER_MASK SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK

	/*
	* Master Clock Directions
	*/
	#define SND_SOC_CLOCK_IN 0
	#define SND_SOC_CLOCK_OUT 1

	#define SND_SOC_STD_AC97_FMTS (SNDRV_PCM_FMTBIT_S8 \|\
	SNDRV_PCM_FMTBIT_S16_LE \|\
	SNDRV_PCM_FMTBIT_S16_BE \|\
	SNDRV_PCM_FMTBIT_S20_3LE \|\
	SNDRV_PCM_FMTBIT_S20_3BE \|\
	SNDRV_PCM_FMTBIT_S20_LE \|\
	SNDRV_PCM_FMTBIT_S20_BE \|\
	SNDRV_PCM_FMTBIT_S24_3LE \|\
	SNDRV_PCM_FMTBIT_S24_3BE \|\
	SNDRV_PCM_FMTBIT_S32_LE \|\
	SNDRV_PCM_FMTBIT_S32_BE)

	struct snd_soc_dai_driver;
	struct snd_soc_dai;
	struct snd_ac97_bus_ops;

	/* Digital Audio Interface clocking API.*/
	int snd_soc_dai_set_sysclk(struct snd_soc_dai *dai, int clk_id,
	unsigned int freq, int dir);

	int snd_soc_dai_set_clkdiv(struct snd_soc_dai *dai,
	int div_id, int div);

	int snd_soc_dai_set_pll(struct snd_soc_dai *dai,
	int pll_id, int source, unsigned int freq_in, unsigned int freq_out);

	int snd_soc_dai_set_bclk_ratio(struct snd_soc_dai *dai, unsigned int ratio);

	/* Digital Audio interface formatting */
	int snd_soc_dai_get_fmt_max_priority(struct snd_soc_pcm_runtime *rtd);
	u64 snd_soc_dai_get_fmt(struct snd_soc_dai *dai, int priority);
	int snd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt);

	int snd_soc_dai_set_tdm_slot(struct snd_soc_dai *dai,
	unsigned int tx_mask, unsigned int rx_mask, int slots, int slot_width);

	int snd_soc_dai_set_channel_map(struct snd_soc_dai *dai,
	unsigned int tx_num, unsigned int *tx_slot,
	unsigned int rx_num, unsigned int *rx_slot);

	int snd_soc_dai_set_tristate(struct snd_soc_dai *dai, int tristate);

	/* Digital Audio Interface mute */
	int snd_soc_dai_digital_mute(struct snd_soc_dai *dai, int mute,
	int direction);


	int snd_soc_dai_get_channel_map(struct snd_soc_dai *dai,
	unsigned int tx_num, unsigned int tx_slot,
	unsigned int rx_num, unsigned int rx_slot);

	int snd_soc_dai_is_dummy(struct snd_soc_dai *dai);

	int snd_soc_dai_hw_params(struct snd_soc_dai *dai,
	struct snd_pcm_substream *substream,
	struct snd_pcm_hw_params *params);
	void snd_soc_dai_hw_free(struct snd_soc_dai *dai,
	struct snd_pcm_substream *substream,
	int rollback);
	int snd_soc_dai_startup(struct snd_soc_dai *dai,
	struct snd_pcm_substream *substream);
	void snd_soc_dai_shutdown(struct snd_soc_dai *dai,
	struct snd_pcm_substream *substream, int rollback);
	snd_pcm_sframes_t snd_soc_dai_delay(struct snd_soc_dai *dai,
	struct snd_pcm_substream *substream);
	void snd_soc_dai_suspend(struct snd_soc_dai *dai);
	void snd_soc_dai_resume(struct snd_soc_dai *dai);
	int snd_soc_dai_compress_new(struct snd_soc_dai *dai,
	struct snd_soc_pcm_runtime *rtd, int num);
	bool snd_soc_dai_stream_valid(struct snd_soc_dai *dai, int stream);
	void snd_soc_dai_link_set_capabilities(struct snd_soc_dai_link *dai_link);
	void snd_soc_dai_action(struct snd_soc_dai *dai,
	int stream, int action);
	static inline void snd_soc_dai_activate(struct snd_soc_dai *dai,
	int stream)
	{
	snd_soc_dai_action(dai, stream, 1);
	}
	static inline void snd_soc_dai_deactivate(struct snd_soc_dai *dai,
	int stream)
	{
	snd_soc_dai_action(dai, stream, -1);
	}
	int snd_soc_dai_active(struct snd_soc_dai *dai);

	int snd_soc_pcm_dai_probe(struct snd_soc_pcm_runtime *rtd, int order);
	int snd_soc_pcm_dai_remove(struct snd_soc_pcm_runtime *rtd, int order);
	int snd_soc_pcm_dai_new(struct snd_soc_pcm_runtime *rtd);
	int snd_soc_pcm_dai_prepare(struct snd_pcm_substream *substream);
	int snd_soc_pcm_dai_trigger(struct snd_pcm_substream *substream, int cmd,
	int rollback);
	int snd_soc_pcm_dai_bespoke_trigger(struct snd_pcm_substream *substream,
	int cmd);

	int snd_soc_dai_compr_startup(struct snd_soc_dai *dai,
	struct snd_compr_stream *cstream);
	void snd_soc_dai_compr_shutdown(struct snd_soc_dai *dai,
	struct snd_compr_stream *cstream,
	int rollback);
	int snd_soc_dai_compr_trigger(struct snd_soc_dai *dai,
	struct snd_compr_stream *cstream, int cmd);
	int snd_soc_dai_compr_set_params(struct snd_soc_dai *dai,
	struct snd_compr_stream *cstream,
	struct snd_compr_params *params);
	int snd_soc_dai_compr_get_params(struct snd_soc_dai *dai,
	struct snd_compr_stream *cstream,
	struct snd_codec *params);
	int snd_soc_dai_compr_ack(struct snd_soc_dai *dai,
	struct snd_compr_stream *cstream,
	size_t bytes);
	int snd_soc_dai_compr_pointer(struct snd_soc_dai *dai,
	struct snd_compr_stream *cstream,
	struct snd_compr_tstamp *tstamp);
	int snd_soc_dai_compr_set_metadata(struct snd_soc_dai *dai,
	struct snd_compr_stream *cstream,
	struct snd_compr_metadata *metadata);
	int snd_soc_dai_compr_get_metadata(struct snd_soc_dai *dai,
	struct snd_compr_stream *cstream,
	struct snd_compr_metadata *metadata);

	struct snd_soc_dai_ops {
	/*
	* DAI clocking configuration, all optional.
	* Called by soc_card drivers, normally in their hw_params.
	*/
	int (set_sysclk)(struct snd_soc_dai dai,
	int clk_id, unsigned int freq, int dir);
	int (set_pll)(struct snd_soc_dai dai, int pll_id, int source,
	unsigned int freq_in, unsigned int freq_out);
	int (set_clkdiv)(struct snd_soc_dai dai, int div_id, int div);
	int (set_bclk_ratio)(struct snd_soc_dai dai, unsigned int ratio);

	/*
	* DAI format configuration
	* Called by soc_card drivers, normally in their hw_params.
	*/
	int (set_fmt)(struct snd_soc_dai dai, unsigned int fmt);
	int (*xlate_tdm_slot_mask)(unsigned int slots,
	unsigned int tx_mask, unsigned int rx_mask);
	int (set_tdm_slot)(struct snd_soc_dai dai,
	unsigned int tx_mask, unsigned int rx_mask,
	int slots, int slot_width);
	int (set_channel_map)(struct snd_soc_dai dai,
	unsigned int tx_num, unsigned int *tx_slot,
	unsigned int rx_num, unsigned int *rx_slot);
	int (get_channel_map)(struct snd_soc_dai dai,
	unsigned int tx_num, unsigned int tx_slot,
	unsigned int rx_num, unsigned int rx_slot);
	int (set_tristate)(struct snd_soc_dai dai, int tristate);

	int (set_sdw_stream)(struct snd_soc_dai dai,
	void *stream, int direction);
	void (get_sdw_stream)(struct snd_soc_dai *dai, int direction);

	/*
	* DAI digital mute - optional.
	* Called by soc-core to minimise any pops.
	*/
	int (mute_stream)(struct snd_soc_dai dai, int mute, int stream);

	/*
	* ALSA PCM audio operations - all optional.
	* Called by soc-core during audio PCM operations.
	*/
	int (startup)(struct snd_pcm_substream ,
	struct snd_soc_dai *);
	void (shutdown)(struct snd_pcm_substream ,
	struct snd_soc_dai *);
	int (hw_params)(struct snd_pcm_substream ,
	struct snd_pcm_hw_params , struct snd_soc_dai );
	int (hw_free)(struct snd_pcm_substream ,
	struct snd_soc_dai *);
	int (prepare)(struct snd_pcm_substream ,
	struct snd_soc_dai *);
	/*
	* NOTE: Commands passed to the trigger function are not necessarily
	* compatible with the current state of the dai. For example this
	* sequence of commands is possible: START STOP STOP.
	* So do not unconditionally use refcounting functions in the trigger
	* function, e.g. clk_enable/disable.
	*/
	int (trigger)(struct snd_pcm_substream , int,
	struct snd_soc_dai *);
	int (bespoke_trigger)(struct snd_pcm_substream , int,
	struct snd_soc_dai *);
	/*
	* For hardware based FIFO caused delay reporting.
	* Optional.
	*/
	snd_pcm_sframes_t (delay)(struct snd_pcm_substream ,
	struct snd_soc_dai *);

	/*
	* Format list for auto selection.
	* Format will be increased if priority format was
	* not selected.
	* see
	* snd_soc_dai_get_fmt()
	*/
	u64 *auto_selectable_formats;
	int num_auto_selectable_formats;

	/* bit field */
	unsigned int no_capture_mute:1;
	};

	struct snd_soc_cdai_ops {
	/*
	* for compress ops
	*/
	int (startup)(struct snd_compr_stream ,
	struct snd_soc_dai *);
	int (shutdown)(struct snd_compr_stream ,
	struct snd_soc_dai *);
	int (set_params)(struct snd_compr_stream ,
	struct snd_compr_params , struct snd_soc_dai );
	int (get_params)(struct snd_compr_stream ,
	struct snd_codec , struct snd_soc_dai );
	int (set_metadata)(struct snd_compr_stream ,
	struct snd_compr_metadata , struct snd_soc_dai );
	int (get_metadata)(struct snd_compr_stream ,
	struct snd_compr_metadata , struct snd_soc_dai );
	int (trigger)(struct snd_compr_stream , int,
	struct snd_soc_dai *);
	int (pointer)(struct snd_compr_stream ,
	struct snd_compr_tstamp , struct snd_soc_dai );
	int (ack)(struct snd_compr_stream , size_t,
	struct snd_soc_dai *);
	};

	/*
	* Digital Audio Interface Driver.
	*
	* Describes the Digital Audio Interface in terms of its ALSA, DAI and AC97
	* operations and capabilities. Codec and platform drivers will register this
	* structure for every DAI they have.
	*
	* This structure covers the clocking, formating and ALSA operations for each
	* interface.
	*/
	struct snd_soc_dai_driver {
	/* DAI description */
	const char *name;
	unsigned int id;
	unsigned int base;
	struct snd_soc_dobj dobj;

	/* DAI driver callbacks */
	int (probe)(struct snd_soc_dai dai);
	int (remove)(struct snd_soc_dai dai);
	/* compress dai */
	int (compress_new)(struct snd_soc_pcm_runtime rtd, int num);
	/* Optional Callback used at pcm creation*/
	int (pcm_new)(struct snd_soc_pcm_runtime rtd,
	struct snd_soc_dai *dai);

	/* ops */
	const struct snd_soc_dai_ops *ops;
	const struct snd_soc_cdai_ops *cops;

	/* DAI capabilities */
	struct snd_soc_pcm_stream capture;
	struct snd_soc_pcm_stream playback;
	unsigned int symmetric_rate:1;
	unsigned int symmetric_channels:1;
	unsigned int symmetric_sample_bits:1;

	/* probe ordering - for components with runtime dependencies */
	int probe_order;
	int remove_order;
	};

	/*
	* Digital Audio Interface runtime data.
	*
	* Holds runtime data for a DAI.
	*/
	struct snd_soc_dai {
	const char *name;
	int id;
	struct device *dev;

	/* driver ops */
	struct snd_soc_dai_driver *driver;

	/* DAI runtime info */
	unsigned int stream_active[SNDRV_PCM_STREAM_LAST + 1]; /* usage count */

	struct snd_soc_dapm_widget *playback_widget;
	struct snd_soc_dapm_widget *capture_widget;

	/* DAI DMA data */
	void *playback_dma_data;
	void *capture_dma_data;

	/* Symmetry data - only valid if symmetry is being enforced */
	unsigned int rate;
	unsigned int channels;
	unsigned int sample_bits;

	/* parent platform/codec */
	struct snd_soc_component *component;

	/* CODEC TDM slot masks and params (for fixup) */
	unsigned int tx_mask;
	unsigned int rx_mask;

	struct list_head list;

	/* function mark */
	struct snd_pcm_substream *mark_startup;
	struct snd_pcm_substream *mark_hw_params;
	struct snd_pcm_substream *mark_trigger;
	struct snd_compr_stream *mark_compr_startup;

	/* bit field */
	unsigned int probed:1;
	};

	static inline struct snd_soc_pcm_stream *
	snd_soc_dai_get_pcm_stream(const struct snd_soc_dai *dai, int stream)
	{
	return (stream == SNDRV_PCM_STREAM_PLAYBACK) ?
	&dai->driver->playback : &dai->driver->capture;
	}

	static inline
	struct snd_soc_dapm_widget *snd_soc_dai_get_widget(
	struct snd_soc_dai *dai, int stream)
	{
	return (stream == SNDRV_PCM_STREAM_PLAYBACK) ?
	dai->playback_widget : dai->capture_widget;
	}

	static inline void snd_soc_dai_get_dma_data(const struct snd_soc_dai dai,
	const struct snd_pcm_substream *ss)
	{
	return (ss->stream == SNDRV_PCM_STREAM_PLAYBACK) ?
	dai->playback_dma_data : dai->capture_dma_data;
	}

	static inline void snd_soc_dai_set_dma_data(struct snd_soc_dai *dai,
	const struct snd_pcm_substream *ss,
	void *data)
	{
	if (ss->stream == SNDRV_PCM_STREAM_PLAYBACK)
	dai->playback_dma_data = data;
	else
	dai->capture_dma_data = data;
	}

	static inline void snd_soc_dai_init_dma_data(struct snd_soc_dai *dai,
	void playback, void capture)
	{
	dai->playback_dma_data = playback;
	dai->capture_dma_data = capture;
	}

	static inline void snd_soc_dai_set_drvdata(struct snd_soc_dai *dai,
	void *data)
	{
	dev_set_drvdata(dai->dev, data);
	}

	static inline void snd_soc_dai_get_drvdata(struct snd_soc_dai dai)
	{
	return dev_get_drvdata(dai->dev);
	}

	/**
	* snd_soc_dai_set_sdw_stream() - Configures a DAI for SDW stream operation
	* @dai: DAI
	* @stream: STREAM
	* @direction: Stream direction(Playback/Capture)
	* SoundWire subsystem doesn't have a notion of direction and we reuse
	* the ASoC stream direction to configure sink/source ports.
	* Playback maps to source ports and Capture for sink ports.
	*
	* This should be invoked with NULL to clear the stream set previously.
	* Returns 0 on success, a negative error code otherwise.
	*/
	static inline int snd_soc_dai_set_sdw_stream(struct snd_soc_dai *dai,
	void *stream, int direction)
	{
	if (dai->driver->ops->set_sdw_stream)
	return dai->driver->ops->set_sdw_stream(dai, stream, direction);
	else
	return -ENOTSUPP;
	}

	/**
	* snd_soc_dai_get_sdw_stream() - Retrieves SDW stream from DAI
	* @dai: DAI
	* @direction: Stream direction(Playback/Capture)
	*
	* This routine only retrieves that was previously configured
	* with snd_soc_dai_get_sdw_stream()
	*
	* Returns pointer to stream or an ERR_PTR value, e.g.
	* ERR_PTR(-ENOTSUPP) if callback is not supported;
	*/
	static inline void snd_soc_dai_get_sdw_stream(struct snd_soc_dai dai,
	int direction)
	{
	if (dai->driver->ops->get_sdw_stream)
	return dai->driver->ops->get_sdw_stream(dai, direction);
	else
	return ERR_PTR(-ENOTSUPP);
	}

	static inline unsigned int
	snd_soc_dai_stream_active(struct snd_soc_dai *dai, int stream)
	{
	return dai->stream_active[stream];
	}

	#endif