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Bluetooth: controller: Introduce ULL LLL architecture

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This is a squash merge of commits introducing the new split
Upper Link Layer and Lower Link Layer architecture of the
Bluetooth Low Energy controller.

This introduces a new, improved Link Layer based on the
concept of split responsibilities; The Upper Link Layer
(ULL) is in charge of control procedures, inter-event
scheduling and overall role management. The code for the
ULL is shared among all hardware implementations. The
Lower Link Layer (LLL) is responsible for the intra-event
scheduling and vendor specific radio hardware access.

The communication between ULL and LLL is achieved through
a set of FIFOs that contain both control and data packets.

Signed-off-by: Vinayak Kariappa Chettimada <vich@nordicsemi.no>
Signed-off-by: Alberto Escolar Piedras <alpi@oticon.com>
Signed-off-by: Wolfgang Puffitsch <wopu@oticon.com>
Signed-off-by: Morten Priess <mtpr@oticon.com>
This commit is contained in:
Vinayak Kariappa Chettimada 2018-12-18 05:48:20 +01:00 • committed by Carles Cufí
commit 1475402d41
57 changed files with 16899 additions and 6 deletions
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subsys/bluetooth/controller/ll_sw/ull_conn.c Normal file
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