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Bluetooth: controller: llcp: fix PHY procedure for conformance test

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This PR fixes the PHY update procedures for conformance tests when
being a Central
The problem was that data was in the LLL tx queue and was still being
queued before the PHY IND was queued (with a given instant).
As a result by the time the PHY IND was transmitted over the air the
instant was in the past.
The fix is to ensure that the LLL tx queue is empty, and to stop
queueing new data  before queueing the PHY IND

Following tests are fixed:
LL/CON/CEN/BV-49-C
LL/CON/CEN/BV-50-C
LL/CON/CEN/BV-53-C
LL/CON/CEN/BV-54-C

Signed-off-by: Andries Kruithof <andries.kruithof@nordicsemi.no>
This commit is contained in:
Andries Kruithof 2022-06-09 08:15:41 +02:00 • committed by Carles Cufí
commit aa80f7da5f
3 changed files with 16 additions and 2 deletions
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5
subsys/bluetooth/controller/ll_sw/ull_conn.c
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@ -8197,3 +8197,8 @@ uint8_t ull_conn_lll_phy_active(struct ll_conn *conn, uint8_t phys)
}
#endif /* CONFIG_BT_LL_SW_LLCP_LEGACY */
uint8_t ull_is_lll_tx_queue_empty(struct ll_conn *conn)
{
return (memq_peek(conn->lll.memq_tx.head, conn->lll.memq_tx.tail, NULL) == NULL);
}