IPC4 Base Firmware & Global Configuration

Core 0 Base Firmware management, ADSP global properties, hardware capabilities, memory pools, power budget tables, and crash dump telemetry. More...

Collaboration diagram for IPC4 Base Firmware & Global Configuration:

Files
file	base_fw.h
	IPC4 Base Firmware parameters, memory configuration, and status definitions.
file	base_fw_vendor.h
	Platform specific IPC4 base firmware functionality.

Data Structures
struct	ipc4_phys_mem_pages
	Free physical memory page descriptor. More...
struct	ipc4_notification_mask_info
	Notification mask configuration structure (IPC4_NOTIFICATION_MASK). More...
struct	ipc4_astate
	A-State frequency and load threshold entry. More...
struct	ipc4_astate_table
	Power Manager A-State configuration table (IPC4_ASTATE_TABLE). More...
struct	ipc4_dma_control
	Direct DMA Gateway Control structure (IPC4_DMA_CONTROL). More...
struct	ipc4_perf_data_item
	Single component performance measurement data item. More...
struct	ipc4_perf_data_item_mi
	Module instance performance data with internal iteration metrics. More...
struct	ipc4_global_perf_data
	Global DSP performance report payload (IPC4_GLOBAL_PERF_DATA). More...
struct	ipc4_scheduler_config
	Scheduler tick and timer configuration (IPC4_SCHEDULER_CONFIGURATION). More...
struct	ipc4_system_time
	64-bit system timestamp split into lower and upper 32-bit words. More...
struct	ipc4_system_time_info
	Host and DSP system time pairing for clock synchronization. More...
struct	ipc4_ext_system_time
	Extended host/DSP system time with RTC and ART timestamps. More...
struct	ipc4_resource_kcps
	KCPS resource allocation descriptor. More...
struct	ipc4_resource_memory
	Memory resource allocation descriptor. More...
struct	ipc4_resource_request
	Resource allocation request structure (IPC4_RESOURCE_ALLOCATION_REQUEST). More...
struct	ipc4_sram_state_page_alloc
	SRAM page allocation bitmask array. More...
struct	ipc4_sram_state_info
	Detailed SRAM state and power bank information (IPC4_MEMORY_STATE_INFO_GET). More...
struct	ipc4_library_props
	Properties of a dynamic or preloaded external library. More...
struct	ipc4_libraries_info
	Library information report payload (IPC4_LIBRARIES_INFO_GET). More...
struct	ipc4_log_state_info
	Logging configuration and state control (IPC4_ENABLE_LOGS). More...
struct	task_props
	Single task properties within scheduler information. More...
struct	scheduler_props
	Core scheduler properties and scheduled tasks. More...
struct	schedulers_info
	Complete scheduler topology report (IPC4_SCHEDULERS_INFO_GET). More...
struct	perf_data_item
	FW component performance measurement item. More...
struct	ext_perf_data_item
	Extended component performance metrics with DSP cycle counts. More...
struct	extended_global_perf_data
	Extended global performance data report (IPC4_EXTENDED_GLOBAL_PERF_DATA). More...
struct	perf_data_item_comp
	Component performance data with wall clock cycle metrics. More...
struct	global_perf_data
	Global DSP performance summary. More...

Enumerations
enum	ipc4_basefw_params {   IPC4_DSP_PROPERTIES = 0 , IPC4_DSP_RESOURCE_STATE = 1 , IPC4_RESERVED = 2 , IPC4_NOTIFICATION_MASK = 3 ,   IPC4_ASTATE_TABLE = 4 , IPC4_DMA_CONTROL = 5 , IPC4_ENABLE_LOGS = 6 , IPC4_FW_CONFIG = 7 ,   IPC4_HW_CONFIG_GET = 8 , IPC4_MODULES_INFO_GET = 9 , IPC4_PIPELINE_LIST_INFO_GET = 10 , IPC4_PIPELINE_PROPS_GET = 11 ,   IPC4_SCHEDULERS_INFO_GET = 12 , IPC4_GATEWAYS_INFO_GET = 13 , IPC4_MEMORY_STATE_INFO_GET = 14 , IPC4_POWER_STATE_INFO_GET = 15 ,   IPC4_LIBRARIES_INFO_GET = 16 , IPC4_PERF_MEASUREMENTS_STATE = 17 , IPC4_GLOBAL_PERF_DATA = 18 , IPC4_L2_CACHE_INFO_GET = 19 ,   IPC4_SYSTEM_TIME = 20 , IPC4_PERFORMANCE_CONFIGURATION = 21 , IPC4_REGISTER_KCPS = 22 , IPC4_RESOURCE_ALLOCATION_REQUEST = 23 ,   IPC4_IO_PERF_MEASUREMENTS_STATE = 24 , IPC4_IO_GLOBAL_PERF_DATA = 25 , IPC4_GET_MODULE_ID = 26 , IPC4_EXTENDED_SYSTEM_TIME = 27 ,   IPC4_TELEMETRY_STATE = 28 , IPC4_TELEMETRY_DATA = 29 , IPC4_EXTENDED_GLOBAL_PERF_DATA = 30 , IPC4_SDW_OWNERSHIP = 31 ,   IPC4_MIC_PRIVACY_HW_MANAGED_STATE_CHANGE = 35 , IPC4_SET_MIC_PRIVACY_FW_MANAGED_POLICY_MASK = 36 }
	IPC4 Base Firmware configuration and query parameter IDs. More...
enum	ipc4_fw_config_params {   IPC4_FW_VERSION_FW_CFG = 0 , IPC4_MEMORY_RECLAIMED_FW_CFG = 1 , IPC4_SLOW_CLOCK_FREQ_HZ_FW_CFG = 2 , IPC4_FAST_CLOCK_FREQ_HZ_FW_CFG = 3 ,   IPC4_DMA_BUFFER_CONFIG_FW_CFG = 4 , IPC4_ALH_SUPPORT_LEVEL_FW_CFG = 5 , IPC4_DL_MAILBOX_BYTES_FW_CFG = 6 , IPC4_UL_MAILBOX_BYTES_FW_CFG = 7 ,   IPC4_TRACE_LOG_BYTES_FW_CFG = 8 , IPC4_MAX_PPL_CNT_FW_CFG = 9 , IPC4_MAX_ASTATE_COUNT_FW_CFG = 10 , IPC4_MAX_MODULE_PIN_COUNT_FW_CFG = 11 ,   IPC4_MODULES_COUNT_FW_CFG = 12 , IPC4_MAX_MOD_INST_COUNT_FW_CFG = 13 , IPC4_MAX_LL_TASKS_PER_PRI_COUNT_FW_CFG = 14 , IPC4_LL_PRI_COUNT = 15 ,   IPC4_MAX_DP_TASKS_COUNT_FW_CFG = 16 , IPC4_MAX_LIBS_COUNT_FW_CFG = 17 , IPC4_SCHEDULER_CONFIGURATION = 18 , IPC4_XTAL_FREQ_HZ_FW_CFG = 19 ,   IPC4_CLOCKS_CONFIGURATION = 20 , IPC4_UAOL_SUPPORT = 21 , IPC4_POWER_GATING_POLICY = 22 , IPC4_ASSERT_MODE = 23 ,   IPC4_TELEMETRY_BUFFER_SIZE = 24 , IPC4_BUS_HARDWARE_ID = 25 , IPC4_DEBUG_WINDOW_SIZE = 26 , IPC4_KPB_RT_SINK_COUNT = 27 ,   IPC4_DMI_FORCE_L1_EXIT = 28 , IPC4_FW_CONTEXT_SAVE = 29 , IPC4_FW_MIN_HOST_BUFFER_PERIODS = 33 , IPC4_FW_SOF_INFO = 35 ,   IPC4_FW_CFG_PARAMS_COUNT , IPC4_MAX_FW_CFG_PARAM = IPC4_FW_CFG_PARAMS_COUNT - 1 }
	Firmware configuration parameter TLV IDs returned by IPC4_FW_CONFIG. More...
enum	ipc4_fw_sof_info_params { IPC4_SOF_CODEC_INFO = 0 , IPC4_SOF_CFG_PARAMS_COUNT , IPC4_MAX_SOF_CFG_PARAM = IPC4_SOF_CFG_PARAMS_COUNT - 1 }
	Tuple-based parameters for SOF specific info under IPC4_FW_SOF_INFO. More...
enum	ipc4_hw_config_params {   IPC4_CAVS_VER_HW_CFG = 0 , IPC4_DSP_CORES_HW_CFG = 1 , IPC4_MEM_PAGE_BYTES_HW_CFG = 2 , IPC4_TOTAL_PHYS_MEM_PAGES_HW_CFG = 3 ,   IPC4_I2S_CAPS_HW_CFG = 4 , IPC4_GPDMA_CAPS_HW_CFG = 5 , IPC4_GATEWAY_COUNT_HW_CFG = 6 , IPC4_HP_EBB_COUNT_HW_CFG = 7 ,   IPC4_LP_EBB_COUNT_HW_CFG = 8 , IPC4_EBB_SIZE_BYTES_HW_CFG = 9 , IPC4_UAOL_CAPS_HW_CFG = 10 , IPC4_INTEL_MIC_PRIVACY_CAPS_HW_CFG = 11 }
	Hardware configuration parameter TLV IDs returned by IPC4_HW_CONFIG_GET. More...
enum	ipc4_memory_type { IPC4_HP_SRAM_MEMORY = 0 , IPC4_LP_SRAM_MEMORY = 1 }
	SRAM power memory type. More...
enum	ipc4_resource_state_request { IPC4_FREE_PHYS_MEM_PAGES = 0 }
	DSP resource state request types. More...
enum	ipc4_clock_src {   IPC4_CLOCK_SRC_XTAL = 0 , IPC4_CLOCK_SRC_LP_RING_OSC , IPC4_CLOCK_SRC_HP_RING_OSC , IPC4_CLOCK_SRC_WOV_XTAL ,   IPC4_CLOCK_SRC_INVALID , IPC4_CLOCK_SRC_MAX_IDX = IPC4_CLOCK_SRC_INVALID - 1 }
	Hardware clock source selection. More...
enum	ipc4_perf_measurements_state_set { IPC4_PERF_MEASUREMENTS_DISABLED = 0 , IPC4_PERF_MEASUREMENTS_STOPPED = 1 , IPC4_PERF_MEASUREMENTS_STARTED = 2 , IPC4_PERF_MEASUREMENTS_PAUSED = 3 }
	Performance measurement process states. More...
enum	ipc4_low_latency_interrupt_source { IPC4_LOW_POWER_TIMER_INTERRUPT_SOURCE = 1 , IPC4_DMA_GATEWAY_INTERRUPT_SOURCE = 2 }
	Low latency interrupt source types. More...
enum	ipc4_pipeline_attributes { IPC4_ULTRA_LOW_POWER = 0 , IPC4_AUTONOMOUS_RESET = 1 }
	Pipeline attributes flags. More...
enum	ipc4_resource_allocation_type { IPC4_RAT_DSP_KCPS = 0 , IPC4_RAT_MEMORY = 1 }
	Resource allocation request types. More...
enum	ipc4_alh_version { IPC4_ALH_NO_SUPPORT , IPC4_ALH_CAVS_1_8 = 0x10000 }
	Audio Hub Link (ALH) interface versions. More...
enum	ipc4_power_state_type { IPC4_ACTIVE_CORES_MASK = 0 , IPC4_CORE_KCPS = 1 }
	Power state query types. More...

Functions
struct ipc4_system_time_info *	basefw_get_system_time_info (void)
	Get current DSP system time information for host-DSP clock synchronization.

Detailed Description

Core 0 Base Firmware management, ADSP global properties, hardware capabilities, memory pools, power budget tables, and crash dump telemetry.

Enumeration Type Documentation

ipc4_alh_version

enum ipc4_alh_version

Audio Hub Link (ALH) interface versions.

Enumerator
IPC4_ALH_NO_SUPPORT	ALH not supported.
IPC4_ALH_CAVS_1_8	CAVS 1.8+ ALH implementation.

ipc4_basefw_params

enum ipc4_basefw_params

IPC4 Base Firmware configuration and query parameter IDs.

Parameter IDs used with LARGE_CONFIG_GET and LARGE_CONFIG_SET commands addressed to the Base FW module instance (module ID 0, instance ID 0).

Enumerator
IPC4_DSP_PROPERTIES	Retrieve firmware properties as TLV structure with typeof AdspProperties via LARGE_CONFIG_GET.
IPC4_DSP_RESOURCE_STATE	Retrieve DSP resource state via LARGE_CONFIG_GET.
IPC4_RESERVED	Reserved parameter identifier.
IPC4_NOTIFICATION_MASK	Enable or disable asynchronous notifications. Used in debug mode to prevent flooding the host with underrun notifications during breakpoints.
IPC4_ASTATE_TABLE	Configure available power states according to the underlying platform. Driver sends A-State table data right after Base FW is up.
IPC4_DMA_CONTROL	Initialize or modify DMA gateway configuration outside stream lifetime. Starts with struct ipc4_dma_control followed by optional gateway-specific data.
IPC4_ENABLE_LOGS	Configure firmware logging state (enable/disable per core, log level, aging timer, FIFO full timer).
IPC4_FW_CONFIG	Discover or set firmware configuration in TLV format (read/write via LARGE_CONFIG_GET / LARGE_CONFIG_SET).
IPC4_HW_CONFIG_GET	Discover underlying hardware configuration in TLV format via LARGE_CONFIG_GET.
IPC4_MODULES_INFO_GET	Retrieve list of module entries loaded into firmware memory space (image manifest or library manifest) via LARGE_CONFIG_GET.
IPC4_PIPELINE_LIST_INFO_GET	Retrieve list of instantiated pipeline IDs via LARGE_CONFIG_GET.
IPC4_PIPELINE_PROPS_GET	Retrieve pipeline properties for a given pipeline ID via LARGE_CONFIG_GET.
IPC4_SCHEDULERS_INFO_GET	Retrieve list of task schedulers and tasks running on a core via LARGE_CONFIG_GET.
IPC4_GATEWAYS_INFO_GET	Retrieve gateway configuration information via LARGE_CONFIG_GET.
IPC4_MEMORY_STATE_INFO_GET	Retrieve information about current DSP memory state via LARGE_CONFIG_GET.
IPC4_POWER_STATE_INFO_GET	Retrieve information about current DSP power state via LARGE_CONFIG_GET.
IPC4_LIBRARIES_INFO_GET	Retrieve information about external libraries loaded into DSP memory.
IPC4_PERF_MEASUREMENTS_STATE	Control global performance measurement state (MCPS monitoring).
IPC4_GLOBAL_PERF_DATA	Retrieve global performance data (KCPS sampled per tick/frame).
IPC4_L2_CACHE_INFO_GET	Retrieve L2 cache state information.
IPC4_SYSTEM_TIME	Pass down host system time in microseconds (UTC, epoch 1601-01-01T00:00:00Z) to synchronize log and trace timestamps.
IPC4_PERFORMANCE_CONFIGURATION	Configure firmware for performance mode via LARGE_CONFIG_SET.
IPC4_REGISTER_KCPS	Register KCPS into power manager service per core 0 (negative values allowed).
IPC4_RESOURCE_ALLOCATION_REQUEST	Request additional resource allocation via LARGE_CONFIG_SET.
IPC4_IO_PERF_MEASUREMENTS_STATE	Control I/O performance measurement state in firmware.
IPC4_IO_GLOBAL_PERF_DATA	Retrieve I/O global performance statistics.
IPC4_GET_MODULE_ID	Retrieve module ID for a specified module UUID.
IPC4_EXTENDED_SYSTEM_TIME	Retrieve current UTC, RTC, and ART timestamps (requires SYSTEM_TIME set first).
IPC4_TELEMETRY_STATE	Control telemetry collection process state and thresholds.
IPC4_TELEMETRY_DATA	Read data from circular telemetry buffer.
IPC4_EXTENDED_GLOBAL_PERF_DATA	Extended global performance data with per-module DSP cycle statistics.
IPC4_SDW_OWNERSHIP	Configure SoundWire controller ownership via LARGE_CONFIG_SET.
IPC4_MIC_PRIVACY_HW_MANAGED_STATE_CHANGE	Notify firmware of hardware-managed microphone privacy state change.
IPC4_SET_MIC_PRIVACY_FW_MANAGED_POLICY_MASK	Set policy mask for microphone privacy in firmware-managed mode.

ipc4_clock_src

enum ipc4_clock_src

Hardware clock source selection.

Enumerator
IPC4_CLOCK_SRC_XTAL	Low Power XTAL oscillator clock source.
IPC4_CLOCK_SRC_LP_RING_OSC	Low Power Ring Oscillator (RO).
IPC4_CLOCK_SRC_HP_RING_OSC	High Power Ring Oscillator (RO).
IPC4_CLOCK_SRC_WOV_XTAL	Low Power Wake-on-Voice (WoV) XTAL oscillator. Generated internal to IP for optimal low-power listening.
IPC4_CLOCK_SRC_INVALID	Invalid clock source sentinel.
IPC4_CLOCK_SRC_MAX_IDX	Maximum valid clock source index.

ipc4_fw_config_params

enum ipc4_fw_config_params

Firmware configuration parameter TLV IDs returned by IPC4_FW_CONFIG.

Enumerator
IPC4_FW_VERSION_FW_CFG	Firmware version.
IPC4_MEMORY_RECLAIMED_FW_CFG	Indicates whether legacy DMA memory is managed by FW.
IPC4_SLOW_CLOCK_FREQ_HZ_FW_CFG	Frequency of oscillator clock in Hz.
IPC4_FAST_CLOCK_FREQ_HZ_FW_CFG	Frequency of PLL clock in Hz.
IPC4_DMA_BUFFER_CONFIG_FW_CFG	List of static and dynamic DMA buffer sizes. Host software may configure minimum and maximum size for each buffer.
IPC4_ALH_SUPPORT_LEVEL_FW_CFG	Audio Hub Link (ALH) support level. Lower 16 bits may indicate implementation revision.
IPC4_DL_MAILBOX_BYTES_FW_CFG	Size of IPC downlink mailbox in bytes.
IPC4_UL_MAILBOX_BYTES_FW_CFG	Size of IPC uplink mailbox in bytes.
IPC4_TRACE_LOG_BYTES_FW_CFG	Size of trace log buffer in bytes.
IPC4_MAX_PPL_CNT_FW_CFG	Maximum number of pipelines that may be instantiated simultaneously.
IPC4_MAX_ASTATE_COUNT_FW_CFG	Maximum number of A-state table entries that may be configured by the driver. Driver may use this value to estimate the size of ASTATE_TABLE data.
IPC4_MAX_MODULE_PIN_COUNT_FW_CFG	Maximum number of input or output pins supported by a module.
IPC4_MODULES_COUNT_FW_CFG	Current total number of module entries loaded into the DSP.
IPC4_MAX_MOD_INST_COUNT_FW_CFG	Maximum number of module instances supported by FW.
IPC4_MAX_LL_TASKS_PER_PRI_COUNT_FW_CFG	Maximum number of LL tasks that may be allocated with the same priority (specified by parent pipeline priority).
IPC4_LL_PRI_COUNT	Number of Low Latency (LL) scheduling priorities.
IPC4_MAX_DP_TASKS_COUNT_FW_CFG	Maximum number of DP tasks that may be allocated on a single core.
IPC4_MAX_LIBS_COUNT_FW_CFG	Maximum number of external libraries that can be loaded into ADSP memory.
IPC4_SCHEDULER_CONFIGURATION	Configuration of system tick source and period.
IPC4_XTAL_FREQ_HZ_FW_CFG	Frequency of XTAL oscillator clock in Hz.
IPC4_CLOCKS_CONFIGURATION	Configuration of clocks.
IPC4_UAOL_SUPPORT	USB Audio Offload (UAOL) support indicator.
IPC4_POWER_GATING_POLICY	Configuration of Dynamic Power Gating Policy.
IPC4_ASSERT_MODE	Configuration of assert mode. Asserts use format "%passert", ptr_to_assert_desc in .asserts_desc section.
IPC4_TELEMETRY_BUFFER_SIZE	Size of telemetry circular buffer in bytes (default 4KB).
IPC4_BUS_HARDWARE_ID	Hardware version and bus hardware identifier.
IPC4_DEBUG_WINDOW_SIZE	Total memory size available in debug window.
IPC4_KPB_RT_SINK_COUNT	Number of real-time Key Phrase Buffer (KPB) output sink pins.
IPC4_DMI_FORCE_L1_EXIT	Manual control of DMI L1 state exit.
IPC4_FW_CONTEXT_SAVE	Firmware context save on D3 power state entry.
IPC4_FW_MIN_HOST_BUFFER_PERIODS	Minimum size of host buffer in milliseconds.
IPC4_FW_SOF_INFO	SOF specific decoder/encoder codec information.
IPC4_FW_CFG_PARAMS_COUNT	Total number of FW config parameters.
IPC4_MAX_FW_CFG_PARAM	Maximum FW config parameter ID value.

ipc4_fw_sof_info_params

enum ipc4_fw_sof_info_params

Tuple-based parameters for SOF specific info under IPC4_FW_SOF_INFO.

Enumerator
IPC4_SOF_CODEC_INFO	Decoder/encoder codec information.
IPC4_SOF_CFG_PARAMS_COUNT	Total number of SOF config parameters.
IPC4_MAX_SOF_CFG_PARAM	Maximum SOF config parameter ID value.

ipc4_hw_config_params

enum ipc4_hw_config_params

Hardware configuration parameter TLV IDs returned by IPC4_HW_CONFIG_GET.

Enumerator
IPC4_CAVS_VER_HW_CFG	Version of CAVS/ACE architecture implemented by FW (from ROMInfo).
IPC4_DSP_CORES_HW_CFG	Number of DSP cores available in the audio subsystem.
IPC4_MEM_PAGE_BYTES_HW_CFG	Size of a single memory page in bytes (typically 4096).
IPC4_TOTAL_PHYS_MEM_PAGES_HW_CFG	Total number of physical memory pages available for allocation.
IPC4_I2S_CAPS_HW_CFG	I2S controller capabilities. Array count given by controller_count. Lower 16 bits may indicate implementation revision.
IPC4_GPDMA_CAPS_HW_CFG	General Purpose DMA (GPDMA) controller capabilities.
IPC4_GATEWAY_COUNT_HW_CFG	Total number of DMA gateways of all types.
IPC4_HP_EBB_COUNT_HW_CFG	Number of High Power (HP) SRAM memory banks (EBBs) manageable by DSP.
IPC4_LP_EBB_COUNT_HW_CFG	Number of Low Power (LP) SRAM memory banks (EBBs) manageable by DSP.
IPC4_EBB_SIZE_BYTES_HW_CFG	Size of a single memory bank (EBB) in bytes.
IPC4_UAOL_CAPS_HW_CFG	USB Audio Offload (UAOL) controller capabilities.
IPC4_INTEL_MIC_PRIVACY_CAPS_HW_CFG	Microphone privacy hardware capabilities.

ipc4_low_latency_interrupt_source

enum ipc4_low_latency_interrupt_source

Low latency interrupt source types.

Enumerator
IPC4_LOW_POWER_TIMER_INTERRUPT_SOURCE	Low Power Timer interrupt.
IPC4_DMA_GATEWAY_INTERRUPT_SOURCE	DMA Gateway completion interrupt.

ipc4_memory_type

enum ipc4_memory_type

SRAM power memory type.

Enumerator
IPC4_HP_SRAM_MEMORY	High Power (HP) SRAM memory.
IPC4_LP_SRAM_MEMORY	Low Power (LP) SRAM memory.

ipc4_perf_measurements_state_set

enum ipc4_perf_measurements_state_set

Performance measurement process states.

Enumerator
IPC4_PERF_MEASUREMENTS_DISABLED	Performance measurements disabled.
IPC4_PERF_MEASUREMENTS_STOPPED	Performance measurements stopped.
IPC4_PERF_MEASUREMENTS_STARTED	Performance measurements actively running.
IPC4_PERF_MEASUREMENTS_PAUSED	Performance measurements paused.

ipc4_pipeline_attributes

enum ipc4_pipeline_attributes

Pipeline attributes flags.

Enumerator
IPC4_ULTRA_LOW_POWER	Pipeline contains modules with Ultra Low Power (ULP) capability.
IPC4_AUTONOMOUS_RESET	Pipeline contains modules capable of autonomous reset reporting.

ipc4_power_state_type

enum ipc4_power_state_type

Power state query types.

Enumerator
IPC4_ACTIVE_CORES_MASK	Query bitmask of currently active DSP cores.
IPC4_CORE_KCPS	Query core clock KCPS settings.

ipc4_resource_allocation_type

enum ipc4_resource_allocation_type

Resource allocation request types.

Enumerator
IPC4_RAT_DSP_KCPS	Allocate DSP processing capacity in KCPS.
IPC4_RAT_MEMORY	Allocate physical SRAM memory.

ipc4_resource_state_request

enum ipc4_resource_state_request

DSP resource state request types.

Enumerator
IPC4_FREE_PHYS_MEM_PAGES	Query free physical HP SRAM memory pages available.

Function Documentation

basefw_get_system_time_info()

struct ipc4_system_time_info * basefw_get_system_time_info

(

void

)

Get current DSP system time information for host-DSP clock synchronization.

Returns

Pointer to struct ipc4_system_time_info containing current 64-bit timestamp.