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Bluetooth: Controller: Fix periodic advertising re-enable assertion

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When periodic advertising with chaining is re-enabled after
changing interval or just re-enabled then the chain PDUs
where not duplicated causing the LLL to assert detecting the
presence of aux pointer but no linked chain PDUs.

Signed-off-by: Vinayak Kariappa Chettimada <vich@nordicsemi.no>
This commit is contained in:
Vinayak Kariappa Chettimada 2022-09-02 13:41:07 +05:30 committed by Anas Nashif
parent 888a17cfda
commit 0954185e81
1 changed files with 64 additions and 6 deletions
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70
subsys/bluetooth/controller/ll_sw/ull_adv_sync.c
View file

@ -163,10 +163,45 @@ uint8_t ll_adv_sync_param_set(uint8_t handle, uint16_t interval, uint16_t flags)
}
#endif /* CONFIG_BT_CTLR_DF_ADV_CTE_TX */
err = ull_adv_sync_pdu_set_clear(lll_sync, pdu_prev, pdu, 0, 0, NULL);
if (err) {
return err;
}
#if defined(CONFIG_BT_CTLR_ADV_SYNC_PDU_LINK)
/* Duplicate chain PDUs */
do {
struct pdu_adv *pdu_chain;
#endif /* CONFIG_BT_CTLR_ADV_SYNC_PDU_LINK */
err = ull_adv_sync_pdu_set_clear(lll_sync, pdu_prev, pdu,
0U, 0U, NULL);
if (err) {
return err;
}
#if defined(CONFIG_BT_CTLR_ADV_SYNC_PDU_LINK)
pdu_prev = lll_adv_pdu_linked_next_get(pdu_prev);
pdu_chain = lll_adv_pdu_linked_next_get(pdu);
/* Allocate new chain PDU if required */
if (pdu_prev) {
/* Prior PDU chain allocation valid */
if (pdu_chain) {
pdu = pdu_chain;
continue;
}
/* Get a new chain PDU */
pdu_chain = lll_adv_pdu_alloc_pdu_adv();
if (!pdu_chain) {
return BT_HCI_ERR_INSUFFICIENT_RESOURCES;
}
/* Link the chain PDU to parent PDU */
lll_adv_pdu_linked_append(pdu_chain, pdu);
/* continue back to update the new PDU */
pdu = pdu_chain;
}
} while (pdu_prev);
#endif /* CONFIG_BT_CTLR_ADV_SYNC_PDU_LINK */
lll_adv_sync_data_enqueue(lll_sync, ter_idx);
@ -751,7 +786,10 @@ uint8_t ll_adv_sync_enable(uint8_t handle, uint8_t enable)
#endif /* CONFIG_BT_CTLR_DF_ADV_CTE_TX */
#if defined(CONFIG_BT_CTLR_ADV_SYNC_PDU_LINK)
/* Update ADI while duplicating chain PDUs */
do {
struct pdu_adv *pdu_chain;
#endif /* CONFIG_BT_CTLR_ADV_SYNC_PDU_LINK */
err = ull_adv_sync_pdu_set_clear(lll_sync, pdu_prev,
pdu, hdr_add_fields,
@ -763,9 +801,29 @@ uint8_t ll_adv_sync_enable(uint8_t handle, uint8_t enable)
#if defined(CONFIG_BT_CTLR_ADV_SYNC_PDU_LINK)
pdu_prev = lll_adv_pdu_linked_next_get(pdu_prev);
pdu = lll_adv_pdu_linked_next_get(pdu);
pdu_chain = lll_adv_pdu_linked_next_get(pdu);
LL_ASSERT((pdu_prev && pdu) || (!pdu_prev && !pdu));
/* Allocate new chain PDU if required */
if (pdu_prev) {
/* Prior PDU chain allocation valid */
if (pdu_chain) {
pdu = pdu_chain;
continue;
}
/* Get a new chain PDU */
pdu_chain = lll_adv_pdu_alloc_pdu_adv();
if (!pdu_chain) {
return BT_HCI_ERR_INSUFFICIENT_RESOURCES;
}
/* Link the chain PDU to parent PDU */
lll_adv_pdu_linked_append(pdu_chain, pdu);
/* continue back to update the new PDU */
pdu = pdu_chain;
}
} while (pdu_prev);
#endif /* CONFIG_BT_CTLR_ADV_SYNC_PDU_LINK */
}