[lgirdwood]

Align the developer guide and architecture diagrams with the latest
code changes in the wov-d0i3 branch:

• Architecture & Endpoints:

  • Update from single-rate 4ch 16k DMIC to dual-rate DMIC architecture:
    48 kHz high-resolution ingest (Pipeline 110, dmic01 on PDM0) and
    16 kHz voice ingest (Pipeline 119, dmic16k on PDM1).
  • Update pipeline mapping: P110 (48k DAI), P119 (16k DAI), P115 (dual-rate
    ECNS DP), P116 (KPB), P111-P113 (MWW Slots 0-2), P114 (Arbiter),
    and P117 (ECNS Host Capture).
  • Update ALSA capture endpoints: PCM 11 (hw:0,11) for 48 kHz stereo clean
    speech and PCM 12 (hw:0,12) for 16 kHz mono WOV pre-roll + speech.
  • Document SoundWire headset multi-slot WoV alternative (Pipelines 140-148,
    PCM 13 and PCM 14).
  • Clarify platform support across Panther Lake (PTL), Tiger Lake (TGL),
    and Wildcat Lake (WCL uses PLATFORM=ptl via symlinks).

• ECNS Module:

  • Document dual-rate multi-pin contract (Pin 0 In 16k 2ch, Pin 1 In 48k 2ch,
    Pin 0 Out 16k 1ch mono, Pin 1 Out 48k 2ch stereo).
  • Document 'DMIC ECNS boost' / 'Jack In ECNS boost' switch kcontrols
    selecting between boosted high-pass filters (+30 dB 100 Hz on Pin 0,
    +20 dB 40 Hz on Pin 1) and 0 dB gain with clickless coefficient pointer swapping.
  • Document 'DMIC ecns_kpb_test_signal' synthetic ramp generator.
  • Document single-producer 16 kHz fallback support.

• Keyword Detector (microWakeWord):

  • Document 4-inference windowed average probability triggering (>= 50%).
  • Update Slot 1 keyword model to 'Hi Intel' (formerly 'banana').
  • Document 'wovdebug_1NN' test trigger kcontrol with 5-second arming delay
    and D0i3 state resilience.
  • Document per-operator CCOUNT cycle profiling (CONFIG_COMP_MWW_PROFILE).
  • Document real-time 2 Hz volatile scoring kcontrols (SOF_IPC4_MODULE_NOTIFICATION).

• WOV Arbiter & KPB Coordination:

  • Rename active slot enum control to 'DMIC Phrase Detect ID' and
    'Jack In Phrase Detect ID'.
  • Enforce single active WoV PCM mutual exclusion rule.
  • Detail mandatory notification order: activate Arbiter before draining KPB.
  • Detail cross-core cache coherency (dcache writeback/invalidate) and
    blocking remote core notification delivery.

• Diagnostics & Tools:

  • Document wov_capture_app, run_wov_10x.py, and wov_multi_slot_test.py.

• Diagrams:

  • Update wov_ecns_pipeline_architecture.svg and wov_scheduling_periods.svg
    to match the dual-rate topology, pipeline IDs, and updated models.

Signed-off-by: Liam Girdwood liam.r.girdwood@linux.intel.com