Repository navigation
Conversation
Add state machine control for SmartMic voice trigger and an ALSA compressed stream to report the trigger event. This is initial support with the following limitations: - The compressed stream is currently a dummy implementation. It will report data available when there is a trigger event but the returned data is only a buffer of '.' characters. The plumbing into a SoundWire data stream is still to-do. - The voice trigger functionality is expected to be provided by the "SMPU 16" and "MFPU 16" entities, and a streaming output terminal connected directly to SMPU 16. - Detection is one-shot; stop and restart the stream to arm it again. Continuous triggers and concurrect triggers are not supported. - Only required MFPU algorithms are managed, and they must already be prepared and ready before arming. Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
Add state machine control for SmartMic voice trigger and an ALSA compressed stream to report the trigger event.
This is initial support with the following limitations:
The compressed stream is currently a dummy implementation. It will report data available when there is a trigger event but the returned data is only a buffer of '.' characters. The plumbing into a SoundWire data stream is still to-do.
The voice trigger functionality is expected to be provided by the "SMPU 16" and "MFPU 16" entities, and a streaming output terminal connected directly to SMPU 16.
Detection is one-shot; stop and restart the stream to arm it again. Continuous triggers and concurrect triggers are not supported.
Only required MFPU algorithms are managed, and they must already be prepared and ready before arming.