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Bluetooth: Mesh: Config opt for friend adv latency

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Adds Kconfig option to enable tuning the Friend receive delay window.

Friend poll events can be made more efficient by compensating for the
time the non-ideal advertising latency otherwise would add to the receive
delay.

Signed-off-by: Anders Storrø <anders.storro@nordicsemi.no>
This commit is contained in:
Anders Storrø 2023-01-11 10:35:46 +01:00 • committed by Carles Cufí
commit bedace2105
2 changed files with 10 additions and 1 deletions
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9
subsys/bluetooth/mesh/Kconfig
View file

@ -878,6 +878,15 @@ config BT_MESH_FRIEND_SEG_RX
many elements we can simultaneously be receiving segmented
messages from when the messages are going into the Friend queue.
config BT_MESH_FRIEND_ADV_LATENCY
int "Latency for enabling advertising"
default 0
help
Latency in milliseconds that it takes to start friend advertising
after requesting it. Used to tune the receive delay window to make
Friend poll events more efficient by compensating for the time the
non-ideal latency otherwise would add to the delay.
endif # BT_MESH_FRIEND
config BT_MESH_CFG_CLI

2
subsys/bluetooth/mesh/friend.c
View file

@ -1034,7 +1034,7 @@ init_friend:
frnd->lpn = rx->ctx.addr;
frnd->num_elem = msg->num_elem;
frnd->subnet = rx->sub;
frnd->recv_delay = msg->recv_delay;
frnd->recv_delay = msg->recv_delay - CONFIG_BT_MESH_FRIEND_ADV_LATENCY;
frnd->poll_to = poll_to * 100U;
frnd->lpn_counter = sys_be16_to_cpu(msg->lpn_counter);
frnd->clear.frnd = sys_be16_to_cpu(msg->prev_addr);