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Bluetooth: Controller: Fix ISO Sync Receiver subevent Rx window

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Fix ISO Synchronized Receiver subevent Rx window timing and
PDU address receive timeout to consider the +/- 2us active
clock jitter.

Signed-off-by: Vinayak Kariappa Chettimada <vich@nordicsemi.no>
This commit is contained in:
Vinayak Kariappa Chettimada 2024-01-11 13:53:08 +01:00 committed by Carles Cufí
parent 83174ef7dc
commit 4a51f68bcc
1 changed files with 5 additions and 6 deletions
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11
subsys/bluetooth/controller/ll_sw/nordic/lll/lll_sync_iso.c
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@ -987,7 +987,7 @@ isr_rx_next_subevent:
hcto -= radio_rx_chain_delay_get(lll->phy, PHY_FLAGS_S8);
hcto -= addr_us_get(lll->phy);
hcto -= radio_rx_ready_delay_get(lll->phy, PHY_FLAGS_S8);
hcto -= (EVENT_CLOCK_JITTER_US << 1);
hcto -= (EVENT_CLOCK_JITTER_US << 1) * nse;
start_us = hcto;
hcto = radio_tmr_start_us(0U, start_us);
@ -996,12 +996,11 @@ isr_rx_next_subevent:
*/
/* LL_ASSERT(hcto == (start_us + 1U)); */
/* Add 4 us + 4 us + (4 us * subevents so far), as radio
* was setup to listen 4 us early and subevents could have
* a 4 us drift each until the current subevent we are
* listening.
/* Add 8 us * subevents so far, as radio was setup to listen
* 4 us early and subevents could have a 4 us drift each until
* the current subevent we are listening.
*/
hcto += ((EVENT_CLOCK_JITTER_US << 1) * (2U + nse)) +
hcto += (((EVENT_CLOCK_JITTER_US << 1) * nse) << 1) +
RANGE_DELAY_US + HCTO_START_DELAY_US;
} else {
/* First subevent PDU was not received, hence setup radio packet