From ab7a874b2a2706fda7f3a9f23ce4c510f58a6d57 Mon Sep 17 00:00:00 2001
From: Yakun Xu <xyk@google.com>
Date: Tue, 4 Mar 2025 03:18:21 +0800
Subject: [PATCH] [csl] enable cca for CSL transmission (#11027)

This commit enables CCA for CSL transmission. CCA is expected for CSL
transmissions. The platform layer may skip CCA if mCsmaCaEnabled is not
set. This commit ensures mCsmaCaEnabled is correctly delivered to the
platform layer.
---
 src/core/thread/csl_tx_scheduler.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/core/thread/csl_tx_scheduler.cpp b/src/core/thread/csl_tx_scheduler.cpp
index fdaed9791..6e4ba0832 100644
--- a/src/core/thread/csl_tx_scheduler.cpp
+++ b/src/core/thread/csl_tx_scheduler.cpp
@@ -224,7 +224,7 @@ Mac::TxFrame *CslTxScheduler::HandleFrameRequest(Mac::TxFrames &aTxFrames)
     frame->SetTxDelay(txDelay);
     frame->SetTxDelayBaseTime(
         static_cast<uint32_t>(mCslTxNeighbor->GetLastRxTimestamp())); // Only LSB part of the time is required.
-    frame->SetCsmaCaEnabled(false);
+    frame->SetCsmaCaEnabled(true);
 
 exit:
     return frame;