Digital Audio Interfaces (DAI), Direct Memory Access (DMA), and Power Management (PM) runtime. More...

Data Structures
struct	dai

union	hdalink_cfg

struct	dai_group
	DAI group information. More...

struct	llp_slot_info
	llp slot info for memory window More...

struct	dai_data
	DAI runtime data. More...

struct	dma_sg_elem
	Element of SG list (as array item). More...

struct	dma_cb_data
	Data used in DMA callbacks. More...

struct	dma_sg_elem_array
	SG elem array. More...

struct	dma_sg_config

struct	dma_chan_status

struct	dma_plat_data

struct	dma

struct	dma_chan_data

struct	dma_info

struct	dma_copy

Macros
#define	DAI_CREAT BIT(0)
	If the device does not exist it will be created.

#define	SOF_DMA_DIR_MEM_TO_MEM BIT(0)
	local memory copy

#define	SOF_DMA_DIR_HMEM_TO_LMEM BIT(1)
	host memory to local mem copy

#define	SOF_DMA_DIR_LMEM_TO_HMEM BIT(2)
	local mem to host mem copy

#define	SOF_DMA_DIR_MEM_TO_DEV BIT(3)
	local mem to dev copy

#define	SOF_DMA_DIR_DEV_TO_MEM BIT(4)
	dev to local mem copy

#define	SOF_DMA_DIR_DEV_TO_DEV BIT(5)
	dev to dev copy

#define	SOF_DMA_CAP_HDA BIT(0)
	HDA DMA.

#define	SOF_DMA_CAP_GP_LP BIT(1)
	GP LP DMA.

#define	SOF_DMA_CAP_GP_HP BIT(2)
	GP HP DMA.

#define	SOF_DMA_CAP_BT BIT(3)
	BT DMA.

#define	SOF_DMA_CAP_SP BIT(4)
	SP DMA.

#define	SOF_DMA_CAP_DMIC BIT(5)
	ACP DMA DMIC >

#define	SOF_DMA_CAP_SP_VIRTUAL BIT(6)
	SP VIRTUAL DMA.

#define	SOF_DMA_CAP_HS_VIRTUAL BIT(7)
	HS VIRTUAL DMA.

#define	SOF_DMA_CAP_HS BIT(8)
	HS DMA.

#define	SOF_DMA_CAP_SW BIT(9)
	SW DMA.

#define	SOF_DMA_CAP_TDM BIT(10)
	connectable to ACP TDM I2S

#define	SOF_DMA_DEV_HOST BIT(0)
	connectable to host

#define	SOF_DMA_DEV_HDA BIT(1)
	connectable to HD/A link

#define	SOF_DMA_DEV_SSP BIT(2)
	connectable to SSP fifo

#define	SOF_DMA_DEV_DMIC BIT(3)
	connectable to DMIC fifo

#define	SOF_DMA_DEV_SSI BIT(4)
	connectable to SSI / SPI fifo

#define	SOF_DMA_DEV_ALH BIT(5)
	connectable to ALH link

#define	SOF_DMA_DEV_SAI BIT(6)
	connectable to SAI fifo

#define	SOF_DMA_DEV_ESAI BIT(7)
	connectable to ESAI fifo

#define	SOF_DMA_DEV_BT BIT(8)
	connectable to ACP BT I2S

#define	SOF_DMA_DEV_SP BIT(9)
	connectable to ACP SP I2S

#define	SOF_DMA_DEV_AFE_MEMIF BIT(10)
	connectable to AFE fifo

#define	SOF_DMA_DEV_SP_VIRTUAL BIT(11)
	connectable to ACP SP VIRTUAL I2S

#define	SOF_DMA_DEV_HS_VIRTUAL BIT(12)
	connectable to ACP HS VIRTUAL I2S

#define	SOF_DMA_DEV_HS BIT(13)
	connectable to ACP HS I2S

#define	SOF_DMA_DEV_MICFIL BIT(14)
	connectable to MICFIL fifo

#define	SOF_DMA_DEV_SW BIT(15)
	connectable to ACP SW

#define	SOF_DMA_DEV_TDM BIT(16)
	connectable to ACP TDM I2S

#define	SOF_DMA_ACCESS_EXCLUSIVE 1

#define	SOF_DMA_ACCESS_SHARED 0

#define	SOF_DMA_COPY_BLOCKING BIT(0)

#define	SOF_DMA_COPY_ONE_SHOT BIT(1)

#define	SOF_DMA_CHAN_INVALID 0xFFFFFFFF

#define	SOF_DMA_CORE_INVALID 0xFFFFFFFF

Typedefs
typedef int(*	channel_copy_func) (const struct audio_stream src, unsigned int src_channel, struct audio_stream dst, unsigned int dst_channel, unsigned int frames)

typedef int(*	dma_process_func) (const struct cir_buf_source source, uint32_t src_channels, struct cir_buf_sink sink, uint32_t sink_channels, size_t source_samples, uint32_t chmap)

Enumerations
enum	sof_dma_cb_status { SOF_DMA_CB_STATUS_RELOAD = 0 , SOF_DMA_CB_STATUS_END }

enum	pm_runtime_context { PM_RUNTIME_DSP }
	Runtime power management context. More...

Functions
static void	dai_write (struct dai *dai, uint32_t reg, uint32_t value)
	Write a 32-bit register on the specified DAI controller.

static uint32_t	dai_read (struct dai *dai, uint32_t reg)
	Read a 32-bit register from the specified DAI controller.

static void	dai_update_bits (struct dai *dai, uint32_t reg, uint32_t mask, uint32_t value)
	Read-modify-write bit fields of a DAI register.

struct dai_group *	dai_group_get (uint32_t group_id, uint32_t flags)
	API to request DAI group.

void	dai_group_put (struct dai_group *group)
	API to release DAI group.

static int	dai_init (struct sof *sof)
	API to initialize a platform DAI.

struct dai *	dai_get (uint32_t type, uint32_t index, uint32_t flags)
	API to request a platform DAI.

void	dai_put (struct dai *dai)
	API to release a platform DAI.

int	dai_set_config (struct dai dai, struct ipc_config_dai config, const void *spec_config, size_t size)
	Digital Audio interface formatting.

int	dai_get_handshake (struct dai *dai, int direction, int stream_id)
	Get Digital Audio interface DMA Handshake.

int	dai_get_fifo_depth (struct dai *dai, int direction)
	Get Digital Audio interface fifo depth.

uint32_t	dai_get_init_delay_ms (struct dai *dai)
	Get DAI initial delay in milliseconds.

int	dai_get_stream_id (struct dai *dai, int direction)
	Get DAI stream id.

int	dai_config_dma_channel (struct dai_data dd, struct comp_dev dev, const void *config)
	Configure DMA channel for DAI.

void	dai_set_link_hda_config (uint16_t link_config, struct ipc_config_dai common_config, const void *spec_config)
	Configure HD Audio DMA params for DAI.

void	dai_dma_release (struct dai_data dd, struct comp_dev dev)
	Reset DAI DMA config.

int	dai_config (struct dai_data dd, struct comp_dev dev, struct ipc_config_dai common_cfg, const void spec_cfg)
	Configure DAI physical interface.

int	dai_assign_group (struct dai_data dd, struct comp_dev dev, uint32_t group_id)
	Assign DAI to a group for simultaneous triggering.

int	dai_position (struct comp_dev dev, struct sof_ipc_stream_posn posn)
	dai position for host driver.

void	dai_dma_position_update (struct dai_data dd, struct comp_dev dev)
	update dai dma position for host driver.

void	dai_release_llp_slot (struct dai_data *dd)
	release llp slot

const struct device *	dai_get_device (enum sof_ipc_dai_type type, uint32_t index)
	Retrieve a pointer to the Zephyr device structure for a DAI of a given type and index.

const struct device **	dai_get_device_list (size_t *count)
	Retrieve the list of all DAI devices.

int	platform_boot_complete (uint32_t boot_message)
	Platform specific implementation of the On Boot Complete handler.

int	platform_init (struct sof *sof)
	Platform initialization entry, called during FW initialization.

int	platform_context_save (struct sof *sof)
	Platform specific context saving routine, called during DSP suspending.

int	dmac_init (struct sof *sof)
	API to initialize a platform DMA controllers.

static void	dma_sg_init (struct dma_sg_elem_array *ea)

int	dma_sg_alloc (struct k_heap heap, struct dma_sg_elem_array ea, uint32_t flags, uint32_t direction, uint32_t buffer_count, uint32_t buffer_bytes, uintptr_t dma_buffer_addr, uintptr_t external_addr)

void	dma_sg_free (struct k_heap heap, struct dma_sg_elem_array ea)

static uint32_t	dma_sg_get_size (struct dma_sg_elem_array *ea)
	Get the total size of SG buffer.

int	dma_buffer_copy_from (struct comp_buffer source, struct comp_buffer sink, dma_process_func process, uint32_t source_bytes, uint32_t chmap)

int	stream_copy_from_no_consume (struct comp_dev dev, struct comp_buffer source, struct comp_buffer *sink, dma_process_func process, uint32_t source_bytes, uint32_t chmap)

int	dma_buffer_copy_to (struct comp_buffer source, struct comp_buffer sink, dma_process_func process, uint32_t sink_bytes, uint32_t chmap)

static const struct dma_info *	dma_info_get (void)

static void	pm_runtime_init (struct sof *sof)
	Initializes runtime power management.

void	pm_runtime_get (enum pm_runtime_context context, uint32_t index)
	Retrieves power management resource (async).

static void	pm_runtime_get_sync (enum pm_runtime_context context, uint32_t index)
	Retrieves power management resource.

void	pm_runtime_put (enum pm_runtime_context context, uint32_t index)
	Releases power management resource (async).

static void	pm_runtime_put_sync (enum pm_runtime_context context, uint32_t index)
	Releases power management resource.

void	pm_runtime_enable (enum pm_runtime_context context, uint32_t index)
	Enables power management operations for the resource.

void	pm_runtime_disable (enum pm_runtime_context context, uint32_t index)
	Disables power management operations for the resource.

bool	pm_runtime_is_active (enum pm_runtime_context context, uint32_t index)
	Reports state of the power managed resource.

static void	platform_pm_runtime_prepare_d0ix_en (uint32_t index)
	Prepare platform hardware and power gating for D0ix idle entry.

Detailed Description

Digital Audio Interfaces (DAI), Direct Memory Access (DMA), and Power Management (PM) runtime.

SOF PM runtime specification mapping for Zephyr builds.

SOF DMA Drivers API specification (deprecated interface, to be replaced by Zephyr zephyr/drivers/dma.h interface).

Platform API specification.

DAI Drivers API specification.

This interface is considered deprecated and native Zephyr interfaces should be used instead.

Macro Definition Documentation

◆ DAI_CREAT

#define DAI_CREAT BIT(0)

If the device does not exist it will be created.

◆ SOF_DMA_ACCESS_EXCLUSIVE

#define SOF_DMA_ACCESS_EXCLUSIVE 1

◆ SOF_DMA_ACCESS_SHARED

#define SOF_DMA_ACCESS_SHARED 0

◆ SOF_DMA_CAP_BT

#define SOF_DMA_CAP_BT BIT(3)

BT DMA.

◆ SOF_DMA_CAP_DMIC

#define SOF_DMA_CAP_DMIC BIT(5)

ACP DMA DMIC >

◆ SOF_DMA_CAP_GP_HP

#define SOF_DMA_CAP_GP_HP BIT(2)

GP HP DMA.

◆ SOF_DMA_CAP_GP_LP

#define SOF_DMA_CAP_GP_LP BIT(1)

GP LP DMA.

◆ SOF_DMA_CAP_HDA

#define SOF_DMA_CAP_HDA BIT(0)

HDA DMA.

◆ SOF_DMA_CAP_HS

#define SOF_DMA_CAP_HS BIT(8)

HS DMA.

◆ SOF_DMA_CAP_HS_VIRTUAL

#define SOF_DMA_CAP_HS_VIRTUAL BIT(7)

HS VIRTUAL DMA.

◆ SOF_DMA_CAP_SP

#define SOF_DMA_CAP_SP BIT(4)

SP DMA.

◆ SOF_DMA_CAP_SP_VIRTUAL

#define SOF_DMA_CAP_SP_VIRTUAL BIT(6)

SP VIRTUAL DMA.

◆ SOF_DMA_CAP_SW

#define SOF_DMA_CAP_SW BIT(9)

SW DMA.

◆ SOF_DMA_CAP_TDM

#define SOF_DMA_CAP_TDM BIT(10)

connectable to ACP TDM I2S

◆ SOF_DMA_CHAN_INVALID

#define SOF_DMA_CHAN_INVALID 0xFFFFFFFF

◆ SOF_DMA_COPY_BLOCKING

#define SOF_DMA_COPY_BLOCKING BIT(0)

◆ SOF_DMA_COPY_ONE_SHOT

#define SOF_DMA_COPY_ONE_SHOT BIT(1)

◆ SOF_DMA_CORE_INVALID

#define SOF_DMA_CORE_INVALID 0xFFFFFFFF

◆ SOF_DMA_DEV_AFE_MEMIF

#define SOF_DMA_DEV_AFE_MEMIF BIT(10)

connectable to AFE fifo

◆ SOF_DMA_DEV_ALH

#define SOF_DMA_DEV_ALH BIT(5)

connectable to ALH link

◆ SOF_DMA_DEV_BT

#define SOF_DMA_DEV_BT BIT(8)

connectable to ACP BT I2S

◆ SOF_DMA_DEV_DMIC

#define SOF_DMA_DEV_DMIC BIT(3)

connectable to DMIC fifo

◆ SOF_DMA_DEV_ESAI

#define SOF_DMA_DEV_ESAI BIT(7)

connectable to ESAI fifo

◆ SOF_DMA_DEV_HDA

#define SOF_DMA_DEV_HDA BIT(1)

connectable to HD/A link

◆ SOF_DMA_DEV_HOST

#define SOF_DMA_DEV_HOST BIT(0)

connectable to host

◆ SOF_DMA_DEV_HS

#define SOF_DMA_DEV_HS BIT(13)

connectable to ACP HS I2S

◆ SOF_DMA_DEV_HS_VIRTUAL

#define SOF_DMA_DEV_HS_VIRTUAL BIT(12)

connectable to ACP HS VIRTUAL I2S

◆ SOF_DMA_DEV_MICFIL

#define SOF_DMA_DEV_MICFIL BIT(14)

connectable to MICFIL fifo

◆ SOF_DMA_DEV_SAI

#define SOF_DMA_DEV_SAI BIT(6)

connectable to SAI fifo

◆ SOF_DMA_DEV_SP

#define SOF_DMA_DEV_SP BIT(9)

connectable to ACP SP I2S

◆ SOF_DMA_DEV_SP_VIRTUAL

#define SOF_DMA_DEV_SP_VIRTUAL BIT(11)

connectable to ACP SP VIRTUAL I2S

◆ SOF_DMA_DEV_SSI

#define SOF_DMA_DEV_SSI BIT(4)

connectable to SSI / SPI fifo

◆ SOF_DMA_DEV_SSP

#define SOF_DMA_DEV_SSP BIT(2)

connectable to SSP fifo

◆ SOF_DMA_DEV_SW

#define SOF_DMA_DEV_SW BIT(15)

connectable to ACP SW

◆ SOF_DMA_DEV_TDM

#define SOF_DMA_DEV_TDM BIT(16)

connectable to ACP TDM I2S

◆ SOF_DMA_DIR_DEV_TO_DEV

#define SOF_DMA_DIR_DEV_TO_DEV BIT(5)

dev to dev copy

◆ SOF_DMA_DIR_DEV_TO_MEM

#define SOF_DMA_DIR_DEV_TO_MEM BIT(4)

dev to local mem copy

◆ SOF_DMA_DIR_HMEM_TO_LMEM

#define SOF_DMA_DIR_HMEM_TO_LMEM BIT(1)

host memory to local mem copy

◆ SOF_DMA_DIR_LMEM_TO_HMEM

#define SOF_DMA_DIR_LMEM_TO_HMEM BIT(2)

local mem to host mem copy

◆ SOF_DMA_DIR_MEM_TO_DEV

#define SOF_DMA_DIR_MEM_TO_DEV BIT(3)

local mem to dev copy

◆ SOF_DMA_DIR_MEM_TO_MEM

#define SOF_DMA_DIR_MEM_TO_MEM BIT(0)

local memory copy

Typedef Documentation

◆ channel_copy_func

typedef int(* channel_copy_func) (const struct audio_stream *src, unsigned int src_channel, struct audio_stream *dst, unsigned int dst_channel, unsigned int frames)

◆ dma_process_func

typedef int(* dma_process_func) (const struct cir_buf_source *source, uint32_t src_channels, struct cir_buf_sink *sink, uint32_t sink_channels, size_t source_samples, uint32_t chmap)

Enumeration Type Documentation

◆ pm_runtime_context

enum pm_runtime_context

Runtime power management context.

Enumerator
PM_RUNTIME_DSP	DSP.

◆ sof_dma_cb_status

enum sof_dma_cb_status

Enumerator
SOF_DMA_CB_STATUS_RELOAD
SOF_DMA_CB_STATUS_END

Function Documentation

◆ dai_assign_group()

int dai_assign_group	(	struct dai_data *	dd,
		struct comp_dev *	dev,
		uint32_t	group_id
	)

Assign DAI to a group for simultaneous triggering.

◆ dai_config()

int dai_config	(	struct dai_data *	dd,
		struct comp_dev *	dev,
		struct ipc_config_dai *	common_cfg,
		const void *	spec_cfg
	)

Configure DAI physical interface.

◆ dai_config_dma_channel()

int dai_config_dma_channel	(	struct dai_data *	dd,
		struct comp_dev *	dev,
		const void *	config
	)

Configure DMA channel for DAI.

◆ dai_dma_position_update()

void dai_dma_position_update	(	struct dai_data *	dd,
		struct comp_dev *	dev
	)

update dai dma position for host driver.

◆ dai_dma_release()

void dai_dma_release	(	struct dai_data *	dd,
		struct comp_dev *	dev
	)

Reset DAI DMA config.

◆ dai_get()

struct dai * dai_get	(	uint32_t	type,
		uint32_t	index,
		uint32_t	flags
	)

API to request a platform DAI.

Parameters

[in]	type	Type of requested DAI.
[in]	index	Index of requested DAI.
[in]	flags	Flags (CREATE)

◆ dai_get_device()

const struct device * dai_get_device	(	enum sof_ipc_dai_type	type,
		uint32_t	index
	)

Retrieve a pointer to the Zephyr device structure for a DAI of a given type and index.

◆ dai_get_device_list()

const struct device ** dai_get_device_list ( size_t * count )

Retrieve the list of all DAI devices.

Parameters

count Pointer to store the number of devices in the list.

Returns: Pointer to the array of device pointers.

◆ dai_get_fifo_depth()

int dai_get_fifo_depth	(	struct dai *	dai,
		int	direction
	)

Get Digital Audio interface fifo depth.

◆ dai_get_handshake()

int dai_get_handshake	(	struct dai *	dai,
		int	direction,
		int	stream_id
	)

Get Digital Audio interface DMA Handshake.

◆ dai_get_init_delay_ms()

uint32_t dai_get_init_delay_ms ( struct dai * dai )

Get DAI initial delay in milliseconds.

◆ dai_get_stream_id()

int dai_get_stream_id	(	struct dai *	dai,
		int	direction
	)

Get DAI stream id.

◆ dai_group_get()

struct dai_group * dai_group_get	(	uint32_t	group_id,
		uint32_t	flags
	)

API to request DAI group.

Returns a DAI group for the given ID and increments the counter of DAIs in the group.

If a group for the given ID doesn't exist, it will either return NULL or allocate a new group structure if the CREATE flag is supplied.

Parameters

[in]	group_id	Group ID
[in]	flags	Flags (CREATE)

◆ dai_group_put()

void dai_group_put ( struct dai_group * group )

API to release DAI group.

Decrements the DAI counter inside the group.

Parameters

[in] group Group

◆ dai_init()

static int dai_init ( struct sof * sof )

inlinestatic

API to initialize a platform DAI.

Parameters

[in] sof Pointer to firmware main context.

◆ dai_position()

int dai_position	(	struct comp_dev *	dev,
		struct sof_ipc_stream_posn *	posn
	)

dai position for host driver.

◆ dai_put()

void dai_put ( struct dai * dai )

API to release a platform DAI.

Parameters

[in] dai DAI to relese.

◆ dai_read()

static uint32_t dai_read	(	struct dai *	dai,
		uint32_t	reg
	)

inlinestatic

Read a 32-bit register from the specified DAI controller.

Parameters

dai	Pointer to DAI device descriptor.
reg	Register offset.

Returns: 32-bit register value.

◆ dai_release_llp_slot()

void dai_release_llp_slot ( struct dai_data * dd )

release llp slot

◆ dai_set_config()

int dai_set_config	(	struct dai *	dai,
		struct ipc_config_dai *	config,
		const void *	spec_config,
		size_t	size
	)

Digital Audio interface formatting.

◆ dai_set_link_hda_config()

void dai_set_link_hda_config	(	uint16_t *	link_config,
		struct ipc_config_dai *	common_config,
		const void *	spec_config
	)

Configure HD Audio DMA params for DAI.

◆ dai_update_bits()

static void dai_update_bits	(	struct dai *	dai,
		uint32_t	reg,
		uint32_t	mask,
		uint32_t	value
	)

inlinestatic

Read-modify-write bit fields of a DAI register.

Parameters

dai	Pointer to DAI device descriptor.
reg	Register offset.
mask	Bitmask of fields to modify.
value	New bit values to set within mask.

◆ dai_write()

static void dai_write	(	struct dai *	dai,
		uint32_t	reg,
		uint32_t	value
	)

inlinestatic

Write a 32-bit register on the specified DAI controller.

Parameters

dai	Pointer to DAI device descriptor.
reg	Register offset.
value	32-bit value to write.

◆ dma_buffer_copy_from()

int dma_buffer_copy_from	(	struct comp_buffer *	source,
		struct comp_buffer *	sink,
		dma_process_func	process,
		uint32_t	source_bytes,
		uint32_t	chmap
	)

◆ dma_buffer_copy_to()

int dma_buffer_copy_to	(	struct comp_buffer *	source,
		struct comp_buffer *	sink,
		dma_process_func	process,
		uint32_t	sink_bytes,
		uint32_t	chmap
	)

◆ dma_info_get()

static const struct dma_info * dma_info_get ( void )

inlinestatic

◆ dma_sg_alloc()

int dma_sg_alloc	(	struct k_heap *	heap,
		struct dma_sg_elem_array *	ea,
		uint32_t	flags,
		uint32_t	direction,
		uint32_t	buffer_count,
		uint32_t	buffer_bytes,
		uintptr_t	dma_buffer_addr,
		uintptr_t	external_addr
	)

◆ dma_sg_free()

void dma_sg_free	(	struct k_heap *	heap,
		struct dma_sg_elem_array *	ea
	)

◆ dma_sg_get_size()

static uint32_t dma_sg_get_size ( struct dma_sg_elem_array * ea )

inlinestatic

Get the total size of SG buffer.

Parameters

ea	Array of SG elements.

Returns: Size of the buffer.

◆ dma_sg_init()

static void dma_sg_init ( struct dma_sg_elem_array * ea )

inlinestatic

◆ dmac_init()

int dmac_init ( struct sof * sof )

API to initialize a platform DMA controllers.

Parameters

[in] sof Pointer to firmware main context.

◆ platform_boot_complete()

int platform_boot_complete ( uint32_t boot_message )

Platform specific implementation of the On Boot Complete handler.

Parameters

[in] boot_message Boot status code.

Returns: 0 if successful, error code otherwise.

◆ platform_context_save()

int platform_context_save ( struct sof * sof )

Platform specific context saving routine, called during DSP suspending.

Parameters

[in] sof Context.

Returns: 0 if successful, error code otherwise.

◆ platform_init()

int platform_init ( struct sof * sof )

Platform initialization entry, called during FW initialization.

Parameters

[in] sof Context.

Returns: 0 if successful, error code otherwise.

◆ platform_pm_runtime_prepare_d0ix_en()

static void platform_pm_runtime_prepare_d0ix_en ( uint32_t index )

inlinestatic

Prepare platform hardware and power gating for D0ix idle entry.

Parameters

index Index or context identifier for the target power-managed domain.

◆ pm_runtime_disable()

void pm_runtime_disable	(	enum pm_runtime_context	context,
		uint32_t	index
	)

Disables power management operations for the resource.

Parameters

[in]	context	Type of power management context.
[in]	index	Index of the device.

◆ pm_runtime_enable()

void pm_runtime_enable	(	enum pm_runtime_context	context,
		uint32_t	index
	)

Enables power management operations for the resource.

Parameters

[in]	context	Type of power management context.
[in]	index	Index of the device.

◆ pm_runtime_get()

void pm_runtime_get	(	enum pm_runtime_context	context,
		uint32_t	index
	)

Retrieves power management resource (async).

Parameters

[in]	context	Type of power management context.
[in]	index	Index of the device.

◆ pm_runtime_get_sync()

static void pm_runtime_get_sync	(	enum pm_runtime_context	context,
		uint32_t	index
	)

inlinestatic

Retrieves power management resource.

Parameters

[in]	context	Type of power management context.
[in]	index	Index of the device.

◆ pm_runtime_init()

static void pm_runtime_init ( struct sof * sof )

inlinestatic

Initializes runtime power management.

◆ pm_runtime_is_active()

bool pm_runtime_is_active	(	enum pm_runtime_context	context,
		uint32_t	index
	)

Reports state of the power managed resource.

Parameters

context	Type of power management context.
index	Index of the resource.

Returns: true if the resource is active or pm disabled, false otherwise.

◆ pm_runtime_put()

void pm_runtime_put	(	enum pm_runtime_context	context,
		uint32_t	index
	)

Releases power management resource (async).

Parameters

[in]	context	Type of power management context.
[in]	index	Index of the device.

◆ pm_runtime_put_sync()

static void pm_runtime_put_sync	(	enum pm_runtime_context	context,
		uint32_t	index
	)

inlinestatic

Releases power management resource.

Parameters

[in]	context	Type of power management context.
[in]	index	Index of the device.

◆ stream_copy_from_no_consume()

int stream_copy_from_no_consume	(	struct comp_dev *	dev,
		struct comp_buffer *	source,
		struct comp_buffer *	sink,
		dma_process_func	process,
		uint32_t	source_bytes,
		uint32_t	chmap
	)

Data Structures

Macros

Typedefs

Enumerations

Functions

Detailed Description

Macro Definition Documentation

◆ DAI_CREAT

◆ SOF_DMA_ACCESS_EXCLUSIVE

◆ SOF_DMA_ACCESS_SHARED

◆ SOF_DMA_CAP_BT

◆ SOF_DMA_CAP_DMIC

◆ SOF_DMA_CAP_GP_HP

◆ SOF_DMA_CAP_GP_LP

◆ SOF_DMA_CAP_HDA

◆ SOF_DMA_CAP_HS

◆ SOF_DMA_CAP_HS_VIRTUAL

◆ SOF_DMA_CAP_SP

◆ SOF_DMA_CAP_SP_VIRTUAL

◆ SOF_DMA_CAP_SW

◆ SOF_DMA_CAP_TDM

◆ SOF_DMA_CHAN_INVALID

◆ SOF_DMA_COPY_BLOCKING

◆ SOF_DMA_COPY_ONE_SHOT

◆ SOF_DMA_CORE_INVALID

◆ SOF_DMA_DEV_AFE_MEMIF

◆ SOF_DMA_DEV_ALH

◆ SOF_DMA_DEV_BT

◆ SOF_DMA_DEV_DMIC

◆ SOF_DMA_DEV_ESAI

◆ SOF_DMA_DEV_HDA

◆ SOF_DMA_DEV_HOST

◆ SOF_DMA_DEV_HS

◆ SOF_DMA_DEV_HS_VIRTUAL

◆ SOF_DMA_DEV_MICFIL

◆ SOF_DMA_DEV_SAI

◆ SOF_DMA_DEV_SP

◆ SOF_DMA_DEV_SP_VIRTUAL

◆ SOF_DMA_DEV_SSI

◆ SOF_DMA_DEV_SSP

◆ SOF_DMA_DEV_SW

◆ SOF_DMA_DEV_TDM

◆ SOF_DMA_DIR_DEV_TO_DEV

◆ SOF_DMA_DIR_DEV_TO_MEM

◆ SOF_DMA_DIR_HMEM_TO_LMEM

◆ SOF_DMA_DIR_LMEM_TO_HMEM

◆ SOF_DMA_DIR_MEM_TO_DEV

◆ SOF_DMA_DIR_MEM_TO_MEM

Typedef Documentation

◆ channel_copy_func

◆ dma_process_func

Enumeration Type Documentation

◆ pm_runtime_context

◆ sof_dma_cb_status

Function Documentation

◆ dai_assign_group()

◆ dai_config()

◆ dai_config_dma_channel()

◆ dai_dma_position_update()

◆ dai_dma_release()

◆ dai_get()

◆ dai_get_device()

◆ dai_get_device_list()

◆ dai_get_fifo_depth()

◆ dai_get_handshake()

◆ dai_get_init_delay_ms()

◆ dai_get_stream_id()

◆ dai_group_get()

◆ dai_group_put()

◆ dai_init()

◆ dai_position()

◆ dai_put()

◆ dai_read()

◆ dai_release_llp_slot()

◆ dai_set_config()

◆ dai_set_link_hda_config()

◆ dai_update_bits()

◆ dai_write()

◆ dma_buffer_copy_from()

◆ dma_buffer_copy_to()