changes from the thread direct branch 07/27

[Suvesh Pratapa (suveshpratapa)]

No description provided.

[cursor]

PR Summary

Medium Risk
Changes timing-sensitive MAC transmit scheduling and enhanced-ACK IE paths for Thread Direct; energy-scan deferral alters multi-instance busy behavior but is localized to the PAL.

Overview
Thread Direct on EFR32 now treats wake listener the same as the wake initiator for enhanced-ACK IE buffering/generation, and keys scheduled TX / SCA LTV header updates off frames that carry an SCA LTV (otMacFrameHasThreadDirectScaLtv) instead of only TD link commands.

When an energy scan must wait on the radio, the PAL queues the scan via sli_ot_radio_instance_energy_scan_defer rather than failing with OT_ERROR_BUSY. Minor cleanups: portable RAIL event log formatting, inlined RAIL init assert, and dropping an explicit mRadioType assignment on generated enhanced ACKs.

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[cursor]

Cursor Bugbot has reviewed your changes using default effort and found 1 potential issue.

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[cursor]

Listener Enh-ACK wait missing

Medium Severity

Listener support was added for Thread Direct Enh-ACK IE buffer sizing and generateAckIeData, but the receive-side spin-poll that waits for Challenge LTV bytes before building the Enh-ACK stays under OPENTHREAD_CONFIG_THREAD_DIRECT_WAKE_INITIATOR_ENABLE only. In listener-only builds, sli_ot_radio_direct_generate_enh_ack_ie_data can run against incomplete early frame data after DATA_REQUEST_COMMAND, so Challenge echo or related TD Enh-ACK content can be wrong or missing.

Additional Locations (1)

• sdk-copies/openthread/platform-abstraction/efr32/radio.cpp#L2077-L2117

 

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