thesofproject · lgirdwood · Sep 30, 2026 · Sep 30, 2026 · Sep 30, 2026 · Sep 30, 2026
@@ -29,6 +29,14 @@ The script will guide you through the process of installing system dependencies,
 
 See [unit testing documentation](https://thesofproject.github.io/latest/developer_guides/unit_tests.html)
 
+### Wake-on-Voice (WoV) Multi-Slot Hardware Verification
+
+For automated hardware testing of the 4-channel native 16 kHz DMIC Wake-on-Voice pipeline with multi-slot microWakeWord (MWW) on Intel Panther Lake (PTL), see the comprehensive runbook:
+* **Documentation & Reproduction Guide**: [Wake-on-Voice (WoV) S0 / D0i3 Multi-Slot Testing & Verification](tools/topology/topology2/README.md#wake-on-voice-wov-s0--d0i3-multi-slot-testing--verification)
+* **Required Kernel Branch**: `wov-ipc4-d0i3` on [`lgirdwood/linux`](https://github.com/lgirdwood/linux/tree/wov-ipc4-d0i3) (`SNDRV_PCM_INFO_NO_PERIOD_WAKEUP` + `SOF_IPC4_NOTIFY_PHRASE_DETECTED`)
+* **Required Firmware Branch**: `wcl-uaol-wov-002` on [`lgirdwood/sof`](https://github.com/lgirdwood/sof/tree/wcl-uaol-wov-002)
+* **Verified Results**: 20 / 20 consecutive passes in S0 mode with synthetic fake-wake detection (`CONFIG_COMP_MWW_FAKE_WAKE_MS=5000`), zero xruns, and zero kernel IPC/ASoC errors.
+
 ## Deployment
 
 TODO: Add additional notes about how to deploy this on a live system

@@ -121,7 +121,7 @@ config MM_DRV
 	default y
 
 config UAOL
-	default y if ACE
+	default n
 
 
 # # Zephyr / power settings

@@ -8,6 +8,11 @@ CONFIG_IPC_MAJOR_4=y
 CONFIG_COMP_TESTER=m
 CONFIG_COMP_SRC_IPC4_FULL_MATRIX=y
 CONFIG_FORMAT_CONVERT_HIFI3=n
+CONFIG_COMP_DRC=m
+CONFIG_COMP_TDFB=m
+CONFIG_COMP_MULTIBAND_DRC=m
+CONFIG_COMP_ARIA=m
+CONFIG_COMP_MUX=m
 
 # SOF / audio modules / mocks
 # This mock is part of official sof-bin releases because the CI that

@@ -8,6 +8,11 @@ CONFIG_IPC_MAJOR_4=y
 CONFIG_COMP_TESTER=m
 CONFIG_COMP_SRC_IPC4_FULL_MATRIX=y
 CONFIG_FORMAT_CONVERT_HIFI3=n
+CONFIG_COMP_DRC=m
+CONFIG_COMP_TDFB=m
+CONFIG_COMP_MULTIBAND_DRC=m
+CONFIG_COMP_ARIA=m
+CONFIG_COMP_MUX=m
 
 # SOF / audio modules / mocks
 # This mock is part of official sof-bin releases because the CI that

@@ -0,0 +1,21 @@
+CONFIG_DTS_CODEC=m
+CONFIG_SAMPLE_SMART_AMP=m
+CONFIG_COMP_STUBS=y
+CONFIG_COMP_MIXIN_MIXOUT=m
+CONFIG_COMP_FIR=m
+CONFIG_COMP_IIR=m
+CONFIG_COMP_DRC=m
+CONFIG_COMP_MUX=m
+CONFIG_COMP_SEL=m
+CONFIG_COMP_SRC=m
+CONFIG_COMP_ARIA=m
+CONFIG_COMP_ASRC=m
+CONFIG_COMP_MFCC=m
+CONFIG_COMP_TDFB=m
+CONFIG_COMP_VOLUME=m
+CONFIG_COMP_DCBLOCK=m
+CONFIG_COMP_CROSSOVER=m
+CONFIG_COMP_MULTIBAND_DRC=m
+CONFIG_COMP_GOOGLE_CTC_AUDIO_PROCESSING=m
+CONFIG_COMP_GOOGLE_RTC_AUDIO_PROCESSING=m
+CONFIG_COMP_TESTER=m
@@ -1,2 +1,21 @@
+CONFIG_DTS_CODEC=m
+CONFIG_SAMPLE_SMART_AMP=m
+CONFIG_COMP_STUBS=y
+CONFIG_COMP_MIXIN_MIXOUT=m
+CONFIG_COMP_FIR=m
+CONFIG_COMP_IIR=m
+CONFIG_COMP_DRC=m
+CONFIG_COMP_MUX=m
+CONFIG_COMP_SEL=m
+CONFIG_COMP_SRC=m
+CONFIG_COMP_ARIA=m
+CONFIG_COMP_ASRC=m
+CONFIG_COMP_MFCC=m
 CONFIG_COMP_TDFB=m
 CONFIG_COMP_VOLUME=m
+CONFIG_COMP_DCBLOCK=m
+CONFIG_COMP_CROSSOVER=m
+CONFIG_COMP_MULTIBAND_DRC=m
+CONFIG_COMP_GOOGLE_CTC_AUDIO_PROCESSING=m
+CONFIG_COMP_GOOGLE_RTC_AUDIO_PROCESSING=m
+CONFIG_COMP_TESTER=m
@@ -0,0 +1,13 @@
+# microWakeWord synthetic fake-wake test aid
+# Synthesizes keyword detections after 5000 ms to enable automated
+# Wake-on-Voice (WoV) S0 and D0i3 sleep-and-wake testing in lab environments
+# without requiring physical audio hardware or a speaker/microphone.
+CONFIG_COMP_MWW_FAKE_WAKE_MS=5000
+
+# LLEXT relocatable ELF format for loadable modules on Intel ADSP ACE 3.0
+CONFIG_LLEXT_TYPE_ELF_RELOCATABLE=y
+
+# Disable USB Audio Offload (UAOL)
+CONFIG_UAOL=n
+CONFIG_DAI_INTEL_UAOL=n
+
@@ -26,68 +26,107 @@ The pipeline separates real-time audio ingest into two primary scheduling domain
 - **Data Processing (DP) Domain (20 ms period)**: Runs block-based processing for acoustic echo cancellation, noise suppression, circular buffering, feature extraction, and neural network keyword classification.
 
 ```mermaid
-graph TD
-    subgraph P100["Pipeline 100 — 4ch DMIC Ingest (Core 0, LL 1ms)"]
-        DAI["DAI Copier (dmic01 / dmic16k)<br>4ch · 16 kHz · S16_LE<br>Ch 0,1: Microphones | Ch 2,3: Far-End Echo Ref"]
-        MIX100["mixin 100.1<br>(4ch Pass-through)"]
-        DAI --> MIX100
+flowchart TD
+    %% Hardware PDM Interfaces
+    subgraph PDM_INTERFACES ["Digital Microphone Interfaces (2 Separate PDM DAIs)"]
+        direction LR
+        PDM_48K["<b>PDM Interface: dmic01</b><br/>DAI Index: 0 (PDM0)<br/>Rate: <b>48 kHz</b> · 2ch Stereo · 16-bit"]
+        PDM_16K["<b>PDM Interface: dmic16k</b><br/>DAI Index: 1 (PDM1)<br/>Rate: <b>16 kHz</b> · 2ch Stereo · 16-bit"]
+    end
+
+    %% Pipeline 110: 48 kHz DAI Capture
+    subgraph P110 ["Pipeline 110: 48 kHz DAI Ingest (Core 0, LL 1ms)"]
+        DAI_48K["dai-copier.DMIC.dmic01.capture<br/>(48 kHz · 2ch · S16_LE)"]
+        MIXIN_110["mixin.110.1<br/>(48 kHz · 2ch)"]
+        DAI_48K --> MIXIN_110
     end
 
-    subgraph P105["Pipeline 105 — ECNS Processing (Core 0, DP 20ms)"]
-        MO105["mixout 105.1<br>(4ch input)"]
-        ECNS["ecns.105.1<br>(Custom ECNS DP Module, 20ms = 320 frames)<br>Echo Cancellation + Noise Reduction"]
-        MIX105_1["mixin 105.1<br>(Pin 0: 1ch Mono Clean)"]
-        MIX105_2["mixin 105.2<br>(Pin 1: 2ch Stereo Clean)"]
-        MO105 --> ECNS
-        ECNS -- "Pin 0 (1ch Mono)" --> MIX105_1
-        ECNS -- "Pin 1 (2ch Stereo)" --> MIX105_2
+    %% Pipeline 119: 16 kHz DAI Capture
+    subgraph P119 ["Pipeline 119: 16 kHz DAI Ingest (Core 0, LL 1ms)"]
+        DAI_16K["dai-copier.DMIC.dmic16k.capture<br/>(16 kHz · 2ch · S16_LE)"]
+        MIXIN_119["mixin.119.1<br/>(16 kHz · 2ch)"]
+        DAI_16K --> MIXIN_119
     end
 
-    subgraph P106["Pipeline 106 — KPB History Buffer (Core 0, DP 20ms)"]
-        MO106["mixout 106.1<br>(1ch mono)"]
-        KPB["kpb.106.1<br>(2.0s mono circular history = 64 KB)<br>16 kHz · 1ch · S16_LE"]
-        MIX106["mixin 106.1<br>(Fan-out Bus)"]
-        MO106 --> KPB
-        KPB --> MIX106
+    PDM_48K --> DAI_48K
+    PDM_16K --> DAI_16K
+
+    %% Pipeline 115: Dual-Rate ECNS DP Pipeline
+    subgraph P115 ["Pipeline 115: ECNS Processing (Core 0, DP 20ms, lp_mode 1)"]
+        direction TB
+
+        MIXOUT_115_2["mixout.115.2<br/>(Pin 0 In: 16 kHz · 2ch stereo)"]
+        MIXOUT_115_1["mixout.115.1<br/>(Pin 1 In: 48 kHz · 2ch stereo)"]
+
+        ECNS["ecns.115.1 (Custom ECNS DP Module · 20ms Period)<br/>━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━<br/><b>Pin 0 In:</b> 16 kHz, 2ch (IBS 1280 bytes)<br/><b>Pin 1 In:</b> 48 kHz, 2ch (IBS 3840 bytes)<br/>─────────────────────────────────<br/><b>Processing:</b><br/>• Pin 0: Extract Left Ch → 16k Mono Clean<br/>• Pin 1: 1-to-1 Stereo Copy → 48k Stereo Clean<br/>─────────────────────────────────<br/><b>Pin 0 Out:</b> 16 kHz, 1ch mono (OBS 640 bytes)<br/><b>Pin 1 Out:</b> 48 kHz, 2ch stereo (OBS 3840 bytes)"]
+
+        MIXIN_115_1["mixin.115.1 ('KPB mixin')<br/>(16 kHz · 1ch mono)"]
+        MIXIN_115_2["mixin.115.2 ('Host mixin')<br/>(48 kHz · 2ch stereo)"]
+
+        MIXOUT_115_2 -->|"Pin 0 In (16k)"| ECNS
+        MIXOUT_115_1 -->|"Pin 1 In (48k)"| ECNS
+
+        ECNS -->|"Pin 0 Out (Mono clean)"| MIXIN_115_1
+        ECNS -->|"Pin 1 Out (Stereo clean)"| MIXIN_115_2
     end
 
-    subgraph WOV_Slots["Pipelines 101–103 — Concurrent WOV Keyword Spotters (Core 0, DP 20ms)"]
-        subgraph Slot0["Slot 0 (Pipeline 101)"]
-            MO101["mixout 101.1"] --> FE0["Feature Extract<br>(e.g. MFCC)"] --> WOV0["WOV Engine 0<br>(e.g. Strawberry)"]
+    MIXIN_119 --> MIXOUT_115_2
+    MIXIN_110 --> MIXOUT_115_1
+
+    %% Pipeline 117: Host Capture PCM 11
+    subgraph P117 ["Pipeline 117: ECNS Clean Host Capture (Core 0, LL 1ms)"]
+        MIXOUT_117["mixout.117.1<br/>(48 kHz · 2ch stereo)"]
+        HOST_11["host-copier.11.capture<br/>(PCM 11: hw:0,11)<br/>2ch Stereo Clean Speech<br/>capture_compatible_d0i3: true"]
+        MIXOUT_117 --> HOST_11
+    end
+
+    MIXIN_115_2 --> MIXOUT_117
+
+    %% Pipeline 116: KPB History Buffer
+    subgraph P116 ["Pipeline 116: KPB History Buffer (Core 0, DP 20ms)"]
+        MIXOUT_116["mixout.116.1<br/>(16 kHz · 1ch mono)"]
+        KPB["kpb.116.1<br/>(2.0s mono circular history = 64 KB)"]
+        MIXIN_116["mixin.116.1<br/>(Fan-out Bus)"]
+        MIXOUT_116 --> KPB
+        KPB -->|"Pin 0 (Live Feed)"| MIXIN_116
+    end
+
+    MIXIN_115_1 --> MIXOUT_116
+
+    %% WOV Keyword Spotter Slots
+    subgraph WOV_Slots ["Pipelines 111–113: Concurrent WOV Keyword Spotters (Core 0, DP 10ms)"]
+        subgraph Slot0 ["Slot 0 (Pipeline 111)"]
+            M1["mixout.111.1"] --> FE0["Feature Extract<br>(MFCC)"] --> WOV0["WOV Engine 0<br>(e.g. Strawberry)"]
         end
-        subgraph Slot1["Slot 1 (Pipeline 102)"]
-            MO102["mixout 102.1"] --> FE1["Feature Extract<br>(e.g. MFCC)"] --> WOV1["WOV Engine 1<br>(e.g. Banana)"]
+        subgraph Slot1 ["Slot 1 (Pipeline 112)"]
+            M2["mixout.112.1"] --> FE1["Feature Extract<br>(MFCC)"] --> WOV1["WOV Engine 1<br>(e.g. Banana)"]
         end
-        subgraph Slot2["Slot 2 (Pipeline 103)"]
-            MO103["mixout 103.1"] --> FE2["Feature Extract<br>(e.g. MFCC)"] --> WOV2["WOV Engine 2<br>(e.g. Orange)"]
+        subgraph Slot2 ["Slot 2 (Pipeline 113)"]
+            M3["mixout.113.1"] --> FE2["Feature Extract<br>(MFCC)"] --> WOV2["WOV Engine 2<br>(e.g. Orange)"]
         end
     end
 
-    subgraph P104["Pipeline 104 — WOV Arbiter (Core 0, DP 20ms)"]
-        ARB["wov-arbiter.104.1<br>(Priority / First-Detect Selector)"]
-    end
+    MIXIN_116 --> M1
+    MIXIN_116 --> M2
+    MIXIN_116 --> M3
 
-    subgraph Host_Capture["Host Capture Interfaces (ALSA PCMs)"]
-        HC10["host-copier.10.capture<br>(PCM 10: hw:0,10)<br>2ch Stereo Clean Speech"]
-        HC11["host-copier.11.capture<br>(PCM 11: hw:0,11)<br>1ch Pre-roll + Live Keyword Speech"]
+    %% Pipeline 114: WOV Arbiter & Host Capture PCM 12
+    subgraph P114 ["Pipeline 114: WOV Arbiter & Capture (Core 0, LL 1ms)"]
+        ARB["wov-arbiter.114.1<br/>(Priority / First-Detect Selector)"]
+        HOST_12["host-copier.12.capture<br/>(PCM 12: hw:0,12)<br/>1ch Pre-roll + Live Keyword Speech<br/>capture_compatible_d0i3: true"]
+        ARB --> HOST_12
     end
 
-    MIX100 --> MO105
-    MIX105_1 --> MO106
-    MIX105_2 --> MO107["mixout 107.1"] --> HC10
-    MIX106 --> MO101
-    MIX106 --> MO102
-    MIX106 --> MO103
-    WOV0 --> ARB
-    WOV1 --> ARB
-    WOV2 --> ARB
-    ARB --> HC11
+    KPB -->|"Pin 1 (Host Sink Drain)"| ARB
+    WOV0 -->|"Pin 1 (Trigger 0)"| ARB
+    WOV1 -->|"Pin 2 (Trigger 1)"| ARB
+    WOV2 -->|"Pin 3 (Trigger 2)"| ARB
 
     style ECNS fill:#1b4f72,stroke:#5dade2,color:#fff
     style KPB fill:#1c4966,stroke:#5dade2,color:#fff
     style ARB fill:#4a235a,stroke:#bb8fce,color:#fff
-    style HC10 fill:#1e8449,stroke:#58d68d,color:#fff
-    style HC11 fill:#2d5a27,stroke:#58d68d,color:#fff
+    style HOST_11 fill:#1e8449,stroke:#58d68d,color:#fff
+    style HOST_12 fill:#2d5a27,stroke:#58d68d,color:#fff
 ```
 
 ---

@@ -0,0 +1,73 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: BSD-3-Clause
+# Copyright(c) 2026 Intel Corporation. All rights reserved.
+
+"""Flatten -ffunction-sections naming in the microwakeword libc shim objects.
+
+The shim is assembled by extracting prebuilt members out of the toolchain's
+libc.a/libm.a. Those members were compiled without -mlongcalls, so their calls
+to the libgcc soft-float helpers (__addsf3, __mulsf3, __adddf3, ...) are plain
+CALL8 instructions with a +/-512KB reach.
+
+Zephyr's Xtensa linker script places plain `.text` (where libgcc's helpers live)
+via `*(.literal .text)`, i.e. at the very front of the .text output section, and
+per-function `.text.*` via the later `*(.literal.* .text.*)` rule, i.e. at the
+very back. On a large image (ptl) the two ends are more than 512KB apart and the
+link fails with:
+
+    dangerous relocation: call8: call target out of range: __addsf3
+
+Renaming the shim's `.text.<fn>`/`.literal.<fn>` back to plain `.text`/`.literal`
+puts these few functions in the same early cluster as libgcc, so the calls stay
+in range. Order within a single `*(...)` wildcard follows input order, so each
+object's `.literal` still precedes its `.text` and l32r reach is unaffected.
+"""
+
+import pathlib
+import struct
+import subprocess
+import sys
+
+
+def section_names(path):
+	"""Return the section names of a 32-bit little-endian ELF object."""
+	data = path.read_bytes()
+	if data[:4] != b'\x7fELF' or data[4] != 1 or data[5] != 1:
+		return []
+
+	e_shoff, = struct.unpack_from('<I', data, 0x20)
+	e_shentsize, e_shnum, e_shstrndx = struct.unpack_from('<HHH', data, 0x2e)
+	if not e_shoff or not e_shnum:
+		return []
+
+	strtab_off, = struct.unpack_from('<I', data, e_shoff + e_shstrndx * e_shentsize + 0x10)
+
+	names = []
+	for i in range(e_shnum):
+		sh_name, = struct.unpack_from('<I', data, e_shoff + i * e_shentsize)
+		start = strtab_off + sh_name
+		end = data.index(b'\0', start)
+		names.append(data[start:end].decode())
+	return names
+
+
+def main():
+	if len(sys.argv) != 3:
+		sys.exit(f'usage: {sys.argv[0]} <objcopy> <dir>')
+
+	objcopy, directory = sys.argv[1], pathlib.Path(sys.argv[2])
+
+	for obj in sorted(directory.glob('*.o')):
+		args = []
+		for name in section_names(obj):
+			for prefix in ('.text.', '.literal.'):
+				if name.startswith(prefix):
+					args += ['--rename-section',
+						 f'{name}={prefix.rstrip(".")}']
+					break
+		if args:
+			subprocess.run([objcopy] + args + [str(obj)], check=True)
+
+
+if __name__ == '__main__':
+	main()