dai.h File Reference

Public APIs for the DAI (Digital Audio Interface) bus drivers. More...

#include <errno.h>
#include <zephyr/types.h>
#include <zephyr/device.h>

Go to the source code of this file.

Data Structures
struct	dai_properties
	DAI properties. More...
struct	dai_config
	Main DAI config structure. More...
struct	dai_ts_cfg
	DAI timestamp configuration. More...
struct	dai_ts_data
	DAI timestamp data. More...

Macros
#define	DAI_FORMAT_CLOCK_PROVIDER_MASK   0xf000
	Used to extract the clock configuration from the format attribute of struct dai_config.
#define	DAI_FORMAT_PROTOCOL_MASK   0x000f
	Used to extract the protocol from the format attribute of struct dai_config.
#define	DAI_FORMAT_CLOCK_INVERSION_MASK   0x0f00
	Used to extract the clock inversion from the format attribute of struct dai_config.

Enumerations
enum	dai_clock_provider { DAI_CBP_CFP = (0 << 12) , DAI_CBC_CFP = (2 << 12) , DAI_CBP_CFC = (3 << 12) , DAI_CBC_CFC = (4 << 12) }
	DAI clock configurations. More...
enum	dai_protocol {   DAI_PROTO_I2S = 1 , DAI_PROTO_RIGHT_J , DAI_PROTO_LEFT_J , DAI_PROTO_DSP_A ,   DAI_PROTO_DSP_B , DAI_PROTO_PDM }
	DAI protocol. More...
enum	dai_clock_inversion { DAI_INVERSION_NB_NF = 0 , DAI_INVERSION_NB_IF = (2 << 8) , DAI_INVERSION_IB_NF = (3 << 8) , DAI_INVERSION_IB_IF = (4 << 8) }
	DAI clock inversion. More...
enum	dai_type {   DAI_LEGACY_I2S = 0 , DAI_INTEL_SSP , DAI_INTEL_DMIC , DAI_INTEL_HDA ,   DAI_INTEL_ALH , DAI_IMX_SAI , DAI_IMX_ESAI , DAI_AMD_BT ,   DAI_AMD_SP , DAI_AMD_DMIC , DAI_MEDIATEK_AFE , DAI_INTEL_SSP_NHLT ,   DAI_INTEL_DMIC_NHLT , DAI_INTEL_HDA_NHLT , DAI_INTEL_ALH_NHLT }
	Types of DAI. More...
enum	dai_dir { DAI_DIR_TX = 0 , DAI_DIR_RX , DAI_DIR_BOTH }
	DAI Direction. More...
enum	dai_state {   DAI_STATE_NOT_READY = 0 , DAI_STATE_READY , DAI_STATE_RUNNING , DAI_STATE_PRE_RUNNING ,   DAI_STATE_PAUSED , DAI_STATE_STOPPING , DAI_STATE_ERROR }
	Interface state. More...
enum	dai_trigger_cmd {   DAI_TRIGGER_START = 0 , DAI_TRIGGER_PRE_START , DAI_TRIGGER_STOP , DAI_TRIGGER_PAUSE ,   DAI_TRIGGER_POST_STOP , DAI_TRIGGER_DRAIN , DAI_TRIGGER_DROP , DAI_TRIGGER_PREPARE ,   DAI_TRIGGER_RESET , DAI_TRIGGER_COPY }
	Trigger command. More...

Functions
static int	dai_probe (const struct device *dev)
	Probe operation of DAI driver.
static int	dai_remove (const struct device *dev)
	Remove operation of DAI driver.
static int	dai_config_set (const struct device *dev, const struct dai_config *cfg, const void *bespoke_cfg)
	Configure operation of a DAI driver.
static int	dai_config_get (const struct device *dev, struct dai_config *cfg, enum dai_dir dir)
	Fetch configuration information of a DAI driver.
static const struct dai_properties *	dai_get_properties (const struct device *dev, enum dai_dir dir, int stream_id)
	Fetch properties of a DAI driver.
static int	dai_trigger (const struct device *dev, enum dai_dir dir, enum dai_trigger_cmd cmd)
	Send a trigger command.
static int	dai_ts_config (const struct device *dev, struct dai_ts_cfg *cfg)
	Configures timestamping in attached DAI.
static int	dai_ts_start (const struct device *dev, struct dai_ts_cfg *cfg)
	Starts timestamping.
static int	dai_ts_stop (const struct device *dev, struct dai_ts_cfg *cfg)
	Stops timestamping.
static int	dai_ts_get (const struct device *dev, struct dai_ts_cfg *cfg, struct dai_ts_data *tsd)
	Gets timestamp.
static int	dai_config_update (const struct device *dev, const void *bespoke_cfg, size_t size)
	Update DAI configuration at runtime.

Detailed Description

Public APIs for the DAI (Digital Audio Interface) bus drivers.