audio: iadk: add timestamping service provider

src/audio/module_adapter/CMakeLists.txt

@@ -73,6 +73,7 @@ endif()
 		iadk/module_initial_settings_concrete.cpp
 		iadk/iadk_module_adapter.cpp
 		iadk/system_agent.cpp
+		iadk/timestamping_service_provider.cpp
 		library/native_system_service.c
 	)
 	if(CONFIG_INTEL_MODULES AND CONFIG_COMP_KPB)

src/audio/module_adapter/iadk/system_agent.cpp

@@ -22,6 +22,7 @@
 #include <iadk_module_adapter.h>
 #include <system_agent.h>
 #include <sof/audio/module_adapter/iadk/iadk_kpb_service.h>
+#include <sof/audio/module_adapter/iadk/iadk_timestamping_service.h>
 #include <sof/audio/module_adapter/library/native_system_service.h>
 #include <sof/audio/module_adapter/library/native_system_agent.h>
 
@@ -47,6 +48,10 @@ static AdspErrorCode iadk_system_service_get_interface(enum interface_id id,
 
 	*iface = NULL;
 
+	if (id == INTERFACE_ID_TIMESTAMPING_SERVICE)
+		return GetTimestampingServiceInterface(INTERFACE_VERSION_TIMESTAMPING_SERVICE_V1,
+						      iface);
+
 #if CONFIG_COMP_KPB
 	if (id == INTERFACE_ID_KPB_SERVICE)
 		return GetKpbServiceInterface(INTERFACE_VERSION_KPB_SERVICE_V1, iface);
@@ -64,6 +69,9 @@ static AdspErrorCode iadk_system_service_get_interface_versioned(enum interface_
 
 	*iface = NULL;
 
+	if (id == INTERFACE_ID_TIMESTAMPING_SERVICE)
+		return GetTimestampingServiceInterface(version, iface);
+
 #if CONFIG_COMP_KPB
 	if (id == INTERFACE_ID_KPB_SERVICE)
 		return GetKpbServiceInterface(version, iface);

src/audio/module_adapter/iadk/timestamping_service_provider.cpp

@@ -0,0 +1,40 @@
+#include <rtos/userspace_helper.h>
+#include <sof/audio/module_adapter/iadk/iadk_timestamping_service.h>
+#include <sof/audio/module_adapter/iadk/timestamping_interface.h>
+
+namespace intel_adsp
+{
+
+/**
+ * \brief Timestamping compatibility provider with zeroed counters.
+ */
+class TimestampingServiceProvider final : public TimestampingInterface {
+public:
+	ErrorCode::Type GetCurrentPosition(const ModuleHandle &,
+					  ModuleCounters &counters) const override
+	{
+		counters = {};
+		return ErrorCode::NO_ERROR;
+	}
+
+	ErrorCode::Type AdjustPosition(const ModuleHandle &, ModuleCounters &,
+				      int64_t ms_shift) const override
+	{
+		return ms_shift == 0 ? ErrorCode::NO_ERROR : ErrorCode::FATAL_FAILURE;
+	}
+};
+
+static APP_TASK_DATA TimestampingServiceProvider timestamping_service;
+
+AdspErrorCode GetTimestampingServiceInterface(uint32_t version, struct system_service_iface **iface)
+{
+	if (version != INTERFACE_VERSION_TIMESTAMPING_SERVICE_V1) {
+		*iface = nullptr;
+		return ADSP_SERVICE_VERSION_UNAVAILABLE;
+	}
+
+	*iface = reinterpret_cast<struct system_service_iface *>(&timestamping_service);
+	return ADSP_NO_ERROR;
+}
+
+} /* namespace intel_adsp */

src/include/sof/audio/module_adapter/iadk/iadk_timestamping_service.h

@@ -0,0 +1,21 @@
+#ifndef _IADK_TIMESTAMPING_SERVICE_H_
+#define _IADK_TIMESTAMPING_SERVICE_H_
+
+#include <stdint.h>
+#include <system_service.h>
+
+namespace intel_adsp
+{
+
+/**
+ * \brief Get the IADK timestamping service interface.
+ *
+ * \param version Requested INTERFACE_VERSION_TIMESTAMPING_SERVICE_* version.
+ * \param iface Non-null location for the returned TimestampingInterface instance.
+ * \return ADSP_NO_ERROR, or ADSP_SERVICE_VERSION_UNAVAILABLE for unsupported versions.
+ */
+AdspErrorCode GetTimestampingServiceInterface(uint32_t version, struct system_service_iface **iface);
+
+} /* namespace intel_adsp */
+
+#endif /* _IADK_TIMESTAMPING_SERVICE_H_ */

src/include/sof/audio/module_adapter/iadk/timestamping_interface.h

@@ -0,0 +1,38 @@
+#ifndef SOF_AUDIO_MODULE_ADAPTER_IADK_TIMESTAMPING_INTERFACE_H
+#define SOF_AUDIO_MODULE_ADAPTER_IADK_TIMESTAMPING_INTERFACE_H
+
+#include <stdint.h>
+
+#include "system_error.h"
+
+namespace intel_adsp
+{
+
+class ModuleHandle;
+
+/**
+ * \brief Snapshot of timestamping counters associated with a module.
+ */
+struct ModuleCounters {
+	uint64_t timer_value;
+	uint64_t linear_link_position;
+	uint64_t gateway_total_processed_data;
+	uint64_t module_total_processed_data;
+};
+
+/**
+ * \brief IADK timestamping service v1 ABI.
+ */
+class TimestampingInterface {
+public:
+	/** \brief Retrieve the current module counters. */
+	virtual ErrorCode::Type GetCurrentPosition(const ModuleHandle &module_handle,
+						  ModuleCounters &counters) const = 0;
+	/** \brief Adjust module counters by the requested shift in milliseconds. */
+	virtual ErrorCode::Type AdjustPosition(const ModuleHandle &module_handle,
+					      ModuleCounters &counters, int64_t ms_shift) const = 0;
+};
+
+} /* namespace intel_adsp */
+
+#endif /* SOF_AUDIO_MODULE_ADAPTER_IADK_TIMESTAMPING_INTERFACE_H */