Rename the use of mstr word in advanced scheduling
implementation to cen as a representation for Central
role.
Signed-off-by: Vinayak Kariappa Chettimada <vich@nordicsemi.no>
Add implementation to find free slot after Periodic
Advertising event, to place the BIG event.
Signed-off-by: Vinayak Kariappa Chettimada <vich@nordicsemi.no>
Refactor the implementation to get free slot after a
state/role so that it is easy for reused for scheduling
Broadcast ISO events.
Signed-off-by: Vinayak Kariappa Chettimada <vich@nordicsemi.no>
Refactor the implementation to get free slot after a
state/role so that the code depth is reduced.
Signed-off-by: Vinayak Kariappa Chettimada <vich@nordicsemi.no>
There are multiple places where double buffer is used in controlers
code. This commit adds generic implementation of the double buffer.
It can be used in future in all places where the data structure is
in use.
Signed-off-by: Piotr Pryga <piotr.pryga@nordicsemi.no>
Pushes all work done in the topic-ble-llcp branch into main branch
This is a refactoring of the LL control procedures; the refactored
control procedures are hidden behind a KConfig option and
per default disabled
Goal of the refactoring:
close issue Link Layer Control Procedure overhaul #15256
make it easier to add/update control procedures
Refactoring consists in principal of writing explicit state machines
for the control procedures.
To reduce the risk of regression errors unit-tests have been added
Following control procedures are implemented:
Connection update procedure
Channel map update procedure
Encryption procedure
Feature exchange procedure
Version exchange procedure
ACL termination procedure
Connection parameters request procedure
LE Ping procedure
Data Length Update procedure
PHY update procedure
Min. nr. Of channels used procedure
Constant Tone extension request procedure
This is a joined work by the people listed in the signed-off-by
list (in alphabetical order)
Signed-off-by: Andries Kruithof Andries.Kruithof@nordicsemi.no
Signed-off-by: Erik Brockhoff erbr@oticon.com
Signed-off-by: Piotr Pryga piotr.pryga@nordicsemi.no
Signed-off-by: Szymon Janc szymon.janc@codecoup.pl
Signed-off-by: Thomas Ebert Hansen thoh@oticon.com
Signed-off-by: Tommie Skriver tosk@demant.com
Signed-off-by: Andries Kruithof <Andries.Kruithof@nordicsemi.no>
Add struct ll_df_conn_rx_params sturcutre to struct lll_conn.
This is storage for parametrers required to configure radio
for CTE reception in connected mode by lower link layer.
Add required includes to make the controller code compilable
after change struct ll_conn.
Signed-off-by: Piotr Pryga <piotr.pryga@nordicsemi.no>
Add struct ll_df_conn_rx_params sturcutre to struct ll_conn.
This is storage for parametrers required to configure radio
for CTE reception in connected mode.
Add required includes to make the controller code compilable
after change struct ll_conn.
Signed-off-by: Piotr Pryga <piotr.pryga@nordicsemi.no>
Fixes ticker_by_next_slot_get for JIT scheduler by allowing iterating
through ticker nodes without ticks_slot information, and improves
performance for legacy ticker scheduling use.
To reduce the processing and context switching overhead, a new feature
is introduced via BT_TICKER_NEXT_SLOT_GET_MATCH, by which an operation
callback may be added via the ticker_next_slot_get_ext interface, and
the match function is then called when the ticker_job is processing the
request.
By returning true in this callback, iteration stops and normal operation
callback is invoked. If the match function returns false, node iteration
continues. This reduces the number of ticker_job executions for node
iteration.
Signed-off-by: Morten Priess <mtpr@oticon.com>
Avoid using sizeof to access ULL and LLL struct members.
Based on the alignment requirements of structures, due to
padding between structure members, use of sizeof of previous
struct member to access next struct member is incorrect.
Continue to use explicitly stored parent pointer to access
ULL context. Combine event header and ULL header so that
the parent pointer point directly to the combined ULL
struct.
Signed-off-by: Vinayak Kariappa Chettimada <vich@nordicsemi.no>
Move access to volatile variable out of assertion to avoid warnings
about side effect in assertion.
Signed-off-by: Wolfgang Puffitsch <wopu@demant.com>
Remove inclusion of vendor specific internal LLL include
files in ULL source code.
Prefix `lll/` include file path to correctly include vendor
defined types and function implementation.
Signed-off-by: Vinayak Kariappa Chettimada <vich@nordicsemi.no>
Remove the redundant advanced scheduling event margin used
while finding a free space between existing active central
connections.
Signed-off-by: Vinayak Kariappa Chettimada <vich@nordicsemi.no>
Fix regression in adding the state for Connection Parameter
Request being rejected where in Connection Parameter Request
Procedure state machine was prematurely reset before the
reject PDU was enqueued.
Signed-off-by: Vinayak Kariappa Chettimada <vich@nordicsemi.no>
Fix repeated offsets in LE Connection Parameter Request PDU
due to rounding errors. Use tick units of connection
interval to calculate the offset units.
Signed-off-by: Vinayak Kariappa Chettimada <vich@nordicsemi.no>
Fix deferred Connection Parameter Request offset population
by introduction of explicit states waiting for the offset
calculations to complete in the ULL_LOW context.
Signed-off-by: Vinayak Kariappa Chettimada <vich@nordicsemi.no>
Fix deferred Connection Update offset population by
introduction of explicit states waiting for the offset
calculation to complete in the ULL_LOW context.
Fixes#29636.
The problem was, in an encrypted connection the enqueued PDU
to be transmitted is encrypt in the prepare callback by the
hardware and swapped to a different buffer for transmission;
the deferred offset population did not reflect in the
transmitted PDU as it was filled in the cleartext buffer
while encryption completed into the encrypted buffer.
Signed-off-by: Vinayak Kariappa Chettimada <vich@nordicsemi.no>
Defined 625 and 1250 as context specific interval common to ULL and LLL.
Checked with bluetooth sanity checks.
Fixes#23314.
Signed-off-by: Nirosharn Amarasinghe <niag@demant.com>
lll->conn is only defined valid when BT_CENTRAL is enabled.
Also ull_sched_mfy_after_mstr_offset_get is only used when BT_CENTRAL
is enabled.
Signed-off-by: Andrzej Kaczmarek <andrzej.kaczmarek@codecoup.pl>
Updated implementation to have consistent initialization of
ret_cb use when passing it to ticker function calls.
Signed-off-by: Vinayak Kariappa Chettimada <vich@nordicsemi.no>
Port advanced scheduling implementation from legacy
controller.
This implementation schedules
- non-overlapping scan window when there are simulataneous
central connections active
- central connection establishment with similar connection
intervals be placed in a non-overlapping group, temporally
- connection parameter request with calculated window offset
hints to have non-overlapping BLE radio events.
Signed-off-by: Vinayak Kariappa Chettimada <vich@nordicsemi.no>
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>
