fix: update MiniMateClient and protocol to ensure correct handling of 1F calls and improve event download sequence
This commit is contained in:
+57
-19
@@ -326,14 +326,13 @@ class MiniMateClient:
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)
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# SUB 1F (download-arm) — send token=0xFE BEFORE POLL+5A to arm the
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# device's bulk stream state machine. The key returned by this call
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# is NOT used for loop iteration — 1F(download) returns inconsistent
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# keys after the first event (device-side state issue). A second
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# browse-mode 1F call after 5A handles actual key advancement.
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# device's bulk stream state machine. Cache the returned key as a
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# fallback for loop iteration when 5A fails (see iteration block below).
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# Confirmed from 4-2-26 capture frames 66-67 (1F before frames 68-73 POLL).
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arm_key4: Optional[bytes] = None
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try:
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proto.advance_event(browse=False) # arm 5A — discard returned key
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log.info("get_events: 1F(download) — 5A armed")
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arm_key4, _ = proto.advance_event(browse=False) # arm 5A
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log.info("get_events: 1F(download) — 5A armed, arm_key=%s", arm_key4.hex())
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except ProtocolError as exc:
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log.warning("get_events: 1F(download) arm failed: %s", exc)
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@@ -349,6 +348,7 @@ class MiniMateClient:
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# SUB 5A — bulk waveform stream (uses cur_key, the event set up by 0A+1E+0C).
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# By default (full_waveform=False): stop after frame 7 for metadata only.
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# When full_waveform=True: fetch all chunks and decode raw ADC samples.
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a5_ok = False
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try:
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if full_waveform:
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log.info(
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@@ -358,6 +358,7 @@ class MiniMateClient:
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cur_key, stop_after_metadata=False, max_chunks=128
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)
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if a5_frames:
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a5_ok = True
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_decode_a5_metadata_into(a5_frames, ev)
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_decode_a5_waveform(a5_frames, ev)
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log.info(
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@@ -372,6 +373,7 @@ class MiniMateClient:
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cur_key, stop_after_metadata=True
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)
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if a5_frames:
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a5_ok = True
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_decode_a5_metadata_into(a5_frames, ev)
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log.debug(
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"get_events: 5A metadata client=%r operator=%r",
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@@ -384,19 +386,55 @@ class MiniMateClient:
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cur_key.hex(), exc,
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)
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# SUB 1F (browse) — advance event pointer for loop iteration.
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# browse=True (all-zero params) confirmed correct for multi-event
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# iteration from 4-3-26 browse-mode S3 captures. Must come AFTER
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# 5A — the download-mode 1F above is for 5A arming only.
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try:
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key4, data8 = proto.advance_event(browse=True)
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log.info(
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"get_events: 1F(browse) → key=%s trailing=%s",
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key4.hex(), data8[4:8].hex(),
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)
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except ProtocolError as exc:
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log.warning("get_events: 1F(browse) failed: %s — stopping", exc)
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key4, data8 = b"\x00\x00\x00\x00", b"\x00\x00\x00\x00\x00\x00\x00\x00"
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# SUB 1F — loop iteration.
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#
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# IMPORTANT: browse 1F (all-zero params) is ONLY called when 5A
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# succeeded. If 5A timed out or failed, calling browse 1F disrupts
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# the device's internal state and causes the NEXT event's 5A to also
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# fail. In the failure path, use the key cached from 1F(download)
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# above as a best-effort fallback for iteration.
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#
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# Confirmed from 4-3-26 browse-mode captures: browse=True params
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# are correct for multi-event iteration. Conditional logic added
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# 2026-04-06 to avoid post-failure state disruption.
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if a5_ok:
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# 5A succeeded — use browse 1F for reliable key advancement.
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try:
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key4, data8 = proto.advance_event(browse=True)
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log.info(
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"get_events: 1F(browse) → key=%s trailing=%s",
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key4.hex(), data8[4:8].hex(),
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)
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except ProtocolError as exc:
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log.warning("get_events: 1F(browse) failed: %s — stopping", exc)
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key4 = b"\x00\x00\x00\x00"
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data8 = b"\x00\x00\x00\x00\x00\x00\x00\x00"
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else:
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# 5A failed — skip browse 1F to avoid further state disruption.
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# Use the arm_key4 returned by 1F(download) as the next-key hint.
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if arm_key4 is None or arm_key4 == cur_key:
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# 1F(download) returned no valid next key (or same key = stuck).
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# Stop iteration to prevent infinite loop.
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log.warning(
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"get_events: 5A failed and 1F(download) returned no valid "
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"next key (arm_key=%s, cur_key=%s) — stopping iteration",
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arm_key4.hex() if arm_key4 else "None",
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cur_key.hex(),
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)
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key4 = b"\x00\x00\x00\x00"
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data8 = b"\x00\x00\x00\x00\x00\x00\x00\x00"
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else:
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# arm_key4 is a valid non-stuck next key — use it.
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# Construct a synthetic data8 with non-null trailing so the
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# loop continues (the real trailing is unknown but non-null
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# since we have a valid arm_key4).
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key4 = arm_key4
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data8 = arm_key4 + b"\x00\x00\x00\x01"
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log.warning(
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"get_events: 5A failed — advancing via arm_key=%s "
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"(browse 1F skipped to preserve device state)",
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key4.hex(),
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)
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events.append(ev)
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idx += 1
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