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Bluetooth: Controller: Preliminary Central multiple CIS support

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Implementation of preliminary Central with multiple CIS
create support in Lower Link Layer. Uses a simple CIS
offset calculation that works when ACL are created with
connection interval that is multiple of CIG ISO interval.
Each ACLs are offset using BT_CTLR_CENTRAL_SPACING hence
having the same CIG sync delay values for all the ACLs.
Advanced Scheduling to setup CIS in any order of ACL and
CIS combination, ACL placed anywhere in timeline and CIS
creation will come therein will be implemented in later
Pull Requests.

Signed-off-by: Vinayak Kariappa Chettimada <vich@nordicsemi.no>
This commit is contained in:
Vinayak Kariappa Chettimada 2023-02-28 11:41:15 +05:30 • committed by Carles Cufí
commit ef8b05e83a
10 changed files with 448 additions and 99 deletions
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3
samples/bluetooth/hci_uart/overlay-all-bt_ll_sw_split.conf
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@ -56,9 +56,6 @@ CONFIG_BT_TICKER_NEXT_SLOT_GET_MATCH=y
CONFIG_BT_TICKER_EXT=y
CONFIG_BT_TICKER_EXT_SLOT_WINDOW_YIELD=y
# Use 10 ms Central Connection Spacing for 10 ms ISO Interval
CONFIG_BT_CTLR_CENTRAL_SPACING=10000
# Control Procedure
CONFIG_BT_CTLR_LLCP_LOCAL_PROC_CTX_BUF_NUM=6