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fix(python): opportunistically catch a debuglink desync

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In certain cases a DebugLinkState response can get stalled and debuglink
will not read it -- i.e., a situation analogous to wirelink de-sync.
There doesn't seem to be a good way to force-sync debuglink the same way
wirelink does it, but we can detect a wrong response to a
DebugLinkGetState and skip it.
This commit is contained in:
matejcik 2024-09-16 16:25:48 +02:00 committed by Martin Milata
parent d803a846a3
commit 93c6510b4b
1 changed files with 2 additions and 0 deletions
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python/src/trezorlib/debuglink.py
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@ -521,6 +521,8 @@ class DebugLink:
self, wait_type: DebugWaitType = DebugWaitType.CURRENT_LAYOUT self, wait_type: DebugWaitType = DebugWaitType.CURRENT_LAYOUT
) -> messages.DebugLinkState: ) -> messages.DebugLinkState:
result = self._call(messages.DebugLinkGetState(wait_layout=wait_type)) result = self._call(messages.DebugLinkGetState(wait_layout=wait_type))
while not isinstance(result, (messages.Failure, messages.DebugLinkState)):
result = self._read()
if isinstance(result, messages.Failure): if isinstance(result, messages.Failure):
raise TrezorFailure(result) raise TrezorFailure(result)
return result return result