audio: microwakeword: add mww component - #11135
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Previously binding two DP (Data Processing) scheduled components was rejected with IPC4_INVALID_REQUEST. This patch adds support for DP-to-DP binding by creating a dual ring buffer configuration where each DP module gets its own ring buffer on either side of the intermediate comp_buffer. Data flow for DP-to-DP: src_DP -> ring_buf_src -> comp_buffer -> ring_buf_sink -> sink_DP Changes in helper.c: - Remove the DP-to-DP bind rejection in ipc_comp_connect(). - Add src_is_dp, sink_is_dp, and dp_to_dp flags to detect the DP-to-DP case. - Create a second ring_buffer allocated from the source module's mod_alloc_ctx for the source side of the comp_buffer. - Refcount the DP vregion for each created ring_buffer via vregion_get(), with a NULL alloc guard. Changes in audio_buffer.c: - Change audio_buffer_attach_secondary_buffer() from a global rejection to per-side checks, allowing both secondary_buffer_sink and secondary_buffer_source to be set simultaneously. - Add a dual-secondary sync path in audio_buffer_sync_secondary_buffer() that cascades data through: input ring_buffer -> comp_buffer -> output ring_buffer, with rate-limiting applied on the output side. Changes in ring_buffer.c: - Release the DP vregion in ring_buffer_free() via vregion_put() and free the mod_alloc_ctx when the refcount reaches zero, matching the pattern used in comp_buffer_free(). Signed-off-by: Seppo Ingalsuo <seppo.ingalsuo@linux.intel.com>
When CONFIG_LLEXT_TYPE_ELF_RELOCATABLE is active, bypass appending static address flags (-Ttext, --section-start, -Tdata) in the linker helper script. This keeps section base addresses at 0. Also adjust the offset calculator to avoid integer parsing errors when all section addresses are set to 0. Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
…table modules Implement page-level virtual memory mapping using Zephyr's sys_bitarray utility over the library region. Compile section layout at load-time to allocate virtual addresses and rewrite section sh_addr headers in-place. This enables Zephyr LLEXT to naturally relocate references. Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Enable CONFIG_LLEXT_EXPORT_BUILTINS_BY_SLID=y in llext_relocatable.conf to link relocatable LLEXT modules against build-time function signature hashing, providing load-time ABI mismatch protection. Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
LLEXT modules linking C++ code (e.g. TensorFlow Lite Micro) can end up with undefined references to global operator new/delete and __cxa_pure_virtual even when built with -fno-exceptions -- some support code (e.g. TFLM's arena allocators) still emits calls to the sized deallocation form in generated destructors, and any TU referencing an abstract class's vtable needs __cxa_pure_virtual resolvable for its pure-virtual slots. zephyr/lib/cpp/minimal/cpp_new.cpp and cpp_virtual.c already define these, but neither is referenced anywhere in the base image build, so their definitions are never pulled into the link or exported. Add thin wrappers in src/lib/cpp_new_export.cpp and export them under the mangled names so LLEXT modules can resolve against the base image. Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Without this flag, calls between GLOBAL-visibility functions defined in different translation units of the SAME llext module are emitted as PLT calls. Zephyr's llext_link_plt() only resolves PLT symbols against the base image's export table, this module's own .exported_sym table, or other already-loaded extensions -- never against symbols merely defined locally in this module's own .dynsym. Multi-TU C++ libraries (e.g. TensorFlow Lite Micro) call plenty of non-exported internal helpers across .cc files, so without this flag those calls fail to link at load time. Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Remove the is_relocatable branch that skipped -Wl,-Ttext/--section-start placement and the custom llext_merge.ld section-merge script for CONFIG_LLEXT_TYPE_ELF_RELOCATABLE builds, and remove the clang --target=/--ld-path= hoisting logic. All LLEXT builds now go through the same fixed-section-address layout path unconditionally, and the strip-debug/remove-section objcopy flags applied afterward are dropped as well. Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
…ted-symbol segment llext_manager_layout_sections() rebases the addresses of recognized sections in place, directly in the raw ELF buffer, before llext_load() ever parses the file. Three problems with the pre-existing rebase and layout logic, all fixed together here: 1. Relocation/symbol staleness after rebase: two classes of data in the file still referenced the OLD (pre-rebase) addresses after this mutation. .rela.dyn/.rela.plt r_offset fields are byte-for-byte copies from the build-time ELF, so llext_link_plt()'s llext_file_offset() lookup failed (Offset not found) for any relocation whose target section moved. R_XTENSA_RELATIVE relocations are treated as a complete no-op by Zephyr's llext core whenever pre_located is set, under the assumption that the stored pointer value is already correct -- SOF's rebase step violates that assumption, so the delta has to be applied to the pointer value at each R_XTENSA_RELATIVE target directly. .symtab/.dynsym st_value fields are taken as final absolute addresses, unmodified, under the same pre_located assumption, feeding both llext_find_sym() lookups and exported symbol addresses. Track (old_addr, size, delta, shdr index) for every section actually rebased, then walk the ELF again applying all three fixups via the new llext_manager_fixup_rela() and llext_manager_fixup_symtab(). 2. Layout packing: .bss must remain immediately contiguous with writable DATA (they share a single VMA mapping, since .bss has no file backing and just extends DATA's mapped-and-zeroed tail), so it is now aliased into LLEXT_MEM_DATA for layout purposes instead of being treated as its own region. A region whose sections are split apart by an interleaving section of a different region (e.g. .exported_sym appearing between two .data-region members) now reuses that region's already-established address delta when it reappears, instead of being re-packed into the forward layout cursor as if it were a fresh region -- which previously inserted a spurious page-aligned gap and could desync .bss from the data region it must stay contiguous with. 3. .exported_sym is now tracked as its own real segment (LIB_MANAGER_EXPORT, new enum value), with its own copy-from-storage pass on load/unload -- some toolchains (GNU ld, unlike the Clang LLEXT overlay which merges it into .rodata) keep it as a distinct allocatable section. It also needs eager, synchronous population from the raw ELF buffer before llext_load() runs (llext_manager_load_sections_early()), because llext_load()'s llext_export_symbols() reads .exported_sym content itself during load, well before SOF's own on-demand per-module copy path (llext_manager_load_module()) would otherwise populate it. Also fixes llext_manager_add_library() to index module manifests by module_id + ctx->mod[i].start_idx instead of module_id + i, for correct indexing with multi-module libraries. Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Export ams_send(), ams_helper_register_producer(), ams_helper_unregister_producer(), and ams_helper_prepare_payload() so an LLEXT module can act as an AMS message producer (e.g. a keyword-spotting component signaling KPB directly) without needing these calls statically linked into the base image. Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Consume the lib_uuids dict already populated earlier in the script: when a library's final .bin file did not yet exist at UUID-collection time, its UUIDs were deferred into lib_uuids instead of being symlinked immediately. install_lib() now walks lib_uuids[key] and creates the deferred <uuid>.bin symlink/copy once the library is actually installed. Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Update tensorflow-clone.sh to ensure all required TFLM dependency repositories are checked out to their specific target commits: - Add explicit checkout_commit() to switch to the required commit ID after cloning or fetching. - Make BASE_DIR default dynamically to the parent directory containing the SOF workspace, while supporting an optional directory argument. - Check current HEAD before checkout to ensure idempotent runs. Signed-off-by: Seppo Ingalsuo <seppo.ingalsuo@linux.intel.com>
Call scheduler_dp_init() in platform_init() on cAVS platforms when CONFIG_ZEPHYR_DP_SCHEDULER is enabled so that DP tasks (such as MFCC and MWW in the Data Processing domain) can bind to the DP scheduler without failing with -ENODEV (-19). Signed-off-by: Seppo Ingalsuo <seppo.ingalsuo@linux.intel.com>
Add microWakeWord (MWW) processing module for low-power keyword spotting: - Implement module adapter in mww.c with soft mel-log AGC, VAD gating, and KPB wake-on-voice notification. - Implement TFLM bridge in mww_model.cc with MixConv operator resolver, support for int8 dequantization, and streaming resource variable resets. - Add robust circular ring buffer boundary unwrap handling for MFCC hops. - Add 2-step debounce verification before triggering KPB drain. - Add LLEXT wrapper and build system integration for both static and dynamic module targets. - Include initial placeholder model interface in mww_model_data.h/cc. Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com> Signed-off-by: Seppo Ingalsuo <seppo.ingalsuo@linux.intel.com>
Document the mww component's architecture and data flow (modeled on src/audio/tensorflow/README.md), the LLEXT fixes required to build and load it as a real module on aphid, and build/deploy/test instructions. Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com> Signed-off-by: Seppo Ingalsuo <seppo.ingalsuo@linux.intel.com>
Update the embedded strawberry wake-word model data array with the newly retrained causal streaming MixConv model. Streaming verification report (threshold 0.85): ================================================================= microWakeWord Streaming Verification Report (Threshold: 0.85) ================================================================= Class Role Files Detected Rate Mean Peak ------------------------------------------------------------- silence Negative 500 0 0.0% 0.000 unknown Negative 1500 35 2.3% 0.067 strawberry Positive 3000 2997 99.9% 0.980 ------------------------------------------------------------- Overall Wake Word Recall (True Positive Rate) : 99.90% (2997/3000) Overall False Alarm Rate (False Positive Rate): 1.75% (35/2000) Precision : 98.85% ================================================================= Signed-off-by: Seppo Ingalsuo <seppo.ingalsuo@linux.intel.com>
…hain Add an end-to-end offline training, quantization, and verification toolchain for microWakeWord streaming models using SOF host testbench MFCC features: - sof_mfcc_extract_features.sh: Batch-extract real SOF 40-bin mel spectrogram features from WAV datasets via sof-testbench4. - sof_mww_generate_keyword_dataset_piper_tts.sh: Synthesize keyword utterances across multiple Piper ONNX neural voices. - sof_mww_prepare_silence_unknown.sh: Prepare ambient background and non-target speech datasets. - sof_mww_dataset.py: Dataset loader with temporal jitter, silence pool background mixing, and hard negative fragment synthesis. - sof_mww_train.py: Causal streaming MixConv model training with quantization-aware calibration and C-array / topology export. - sof_mww_verify.py: Streaming temporal verification with configurable threshold and consecutive-detection debounce. - sof_mww_train_pipeline.sh: One-shot automation pipeline for training, export, and streaming verification. Signed-off-by: Seppo Ingalsuo <seppo.ingalsuo@linux.intel.com>
Add common ABI manifest inclusion and update KPB component configuration with standard IPC4 UUID definitions. Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com> Signed-off-by: Seppo Ingalsuo <seppo.ingalsuo@linux.intel.com>
…tend Add 40-bin mel filterbank configurations (mel40, mel40_compress, mel40_10ms, and mel40_10ms_compress) to setup_mfcc.m and generate the corresponding topology blobs for microWakeWord streaming frontends. Signed-off-by: Seppo Ingalsuo <seppo.ingalsuo@linux.intel.com>
Add build of testbench topologies to test the 40-bin 10ms-hop Mel spectrogram profile of the MFCC component (mel40_10ms.conf). The new testbench topologies are named: sof-hda-benchmark-mfccmel40_10ms16.tplg sof-hda-benchmark-mfccmel40_10ms24.tplg sof-hda-benchmark-mfccmel40_10ms32.tplg Signed-off-by: Seppo Ingalsuo <seppo.ingalsuo@linux.intel.com>
…d pipelines Add Topology2 configuration and pipeline graphs for microWakeWord (MWW) Wake-on-Voice with KPB: - Define MWW module component in mww.conf with default control definitions. - Add HDA Mic capture pipeline (host-gateway-src-mfcc-mww-capture.conf) and host-gateway-micsel-mfcc-mww-capture.conf. - Add SoundWire jack and DMIC MWW branches and DMIC MFCC profiles. - Add HDA generic and SoundWire MTL/ARL topology targets with KPB and MWW. Signed-off-by: Seppo Ingalsuo <seppo.ingalsuo@linux.intel.com>
Include audio/microwakeword/mww.toml when CONFIG_COMP_MWW is enabled across platform rimage manifest headers (tgl, tgl-h, mtl, lnl, ptl, wcl) so the MWW module UUID and entry are registered in base firmware images and loadable on target devices. Signed-off-by: Seppo Ingalsuo <seppo.ingalsuo@linux.intel.com>
Enable CONFIG_COMP_MWW=y, C++ runtime dependencies, and EDF stack sizing in intel_adsp_cavs25.conf so that microWakeWord is statically built into the firmware binary for cAVS 2.5 (Tiger Lake). Signed-off-by: Seppo Ingalsuo <seppo.ingalsuo@linux.intel.com>
…atforms Enable CONFIG_COMP_MWW=m as an LLEXT loadable extension on Intel ADSP ACE 1.5 (Meteor Lake MTPM) and ACE 3.0 (Panther Lake PTL) targets: - Sizing LLEXT metadata heap for TFLM weak symbols. - Adjusting virtual heap and memory pool sizes for C++ TFLM arenas. - Enabling C++ runtime support for MWW dependencies. Signed-off-by: Seppo Ingalsuo <seppo.ingalsuo@linux.intel.com>
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