On disconnect with refactored LLCP, if data tx is paused,
possibly 'waiting' tx nodes would not get released.
Signed-off-by: Erik Brockhoff <erbr@oticon.com>
Encryption request is enqueued in thread context from the Tx
buffer pool, so that it is serialized alongwith the already
enqueued data buffers ensuring they are transmitted out to
peer before encryption is setup. Allocate additional Tx
buffers to accommodate simultaneous encryption setup across
active connections.
Signed-off-by: Vinayak Kariappa Chettimada <vich@nordicsemi.no>
- Prioritize CIS_REQ handling in (old) LLCP
- Reject if CIS_REQ uses exisiting CIS ID
These fixes prevent assertions in /LL/CIS/PER/BV-38-C.
Signed-off-by: Morten Priess <mtpr@oticon.com>
Fix BT_CTLR_RX_ENQUEUE_HOLD implementation that stalled
generating the CONN_UPDATE and PHY_UPDATE when there were
no Rx data or Tx acknowledgements to be processed when
the controller was built with BT_CTLR_LOW_LAT_ULL.
Signed-off-by: Vinayak Kariappa Chettimada <vich@nordicsemi.no>
Fix Data Length Request CMD parameter checking to not
restrict invalid maximum Tx time values. This addresses
conformance test cases that provide maximum Tx time values
of 2128 us when not supporting Coded PHY in the Controller
implementation.
Signed-off-by: Vinayak Kariappa Chettimada <vich@nordicsemi.no>
Fix PHY update procedure to handle unsupported PHY requested
by peer central device. PHY update complete will not be
generated to Host, connection is maintained on the old
PHY and the Controller will not respond to PDUs received on
the unsupported PHY.
Signed-off-by: Vinayak Kariappa Chettimada <vich@nordicsemi.no>
Fixes issue re. sending packets after sending TERMINATE_IND.
Fixes issue re. erroneous error code on 'timed out' termination (ie
when peer does not ack terminate_ind)
Signed-off-by: Erik Brockhoff <erbr@oticon.com>
On a completion of feature exchange the max DLE times needs to be
updated if Coded PHY has become supported.
For this now also keep a separate store of the default_tx_octets/time
for the sake of re-calculation of local versions of DLE values
Signed-off-by: Erik Brockhoff <erbr@oticon.com>
Rework instant based procedure complete event generation to be
held until after the on-air instant has elapsed, to have
conditional compilation around the code where the event
generation be held or immediately dispatched so that it
improves readability.
Signed-off-by: Vinayak Kariappa Chettimada <vich@nordicsemi.no>
Fix instant based procedure complete event generation to be
held until after the on-air instant has elapsed.
Signed-off-by: Vinayak Kariappa Chettimada <vich@nordicsemi.no>
The periodic CTE_REQ disable command, requested by Host, may be locked
until connection is dropped due to missing CTE_RSP from peer device.
That is caused by implementation of CTE_REQ disable and CTE_REQ
control procedure handling.
The procedure is marked as active when CTE request was send to peer
device. It is marked as inactive after completion of the procedure.
That caused locking of CTE disable on a semaphore.
The BT 5.3 Core Spec, Vol 4, Part E, section 7.8.85 says the HCI_LE_-
Connection_CTE_Request_Enable should be considered active on a conne-
ction from when Host successfully issues the command with Enable=0x1
until a command is issued with Enable=0x0 or single LLCP CTE request
has finished (CTE_Request_Interval=0x0). Also there is a clarification
from BT SIG that the command with Enable=0x0 does not affect any
initiated LLCP CTE request. That means Controller is allowed to finish
already started procedure and it is not allowed to start new LLCP CTE
request procedure after completion of the command with Enable=0x0.
Taking that into account, there is no need to synchronize ULL and LLL
in regard of disable the LLCP CTE request while the procedure is
pending. Controller is free to complete the procedure or terminate it.
The change removes all code related with cte_req.is_active, disable
callback and waiting of ULL for LLL to finish the LLCP CTE request.
The ULL will complete the HCI_LE_Connection_Request_Enable with
Enable=0x0 immediately. In case the procedure is disabled in before
the response arrives, then further processing of the response is
dropped and the procedure context released.
The context is not released by the code responsible for disable
handling, to have single place where it is done.
Signed-off-by: Piotr Pryga <piotr.pryga@nordicsemi.no>
There is an error in the condition that checks if new CTE_REQ should
be started after end of connection event. The condition verifies if
counter req_expire is set to zero. Then new CTE_REQ is started
irrespectively to CTE_REQ being disabled.
req_interval is used to store information if the CTE_REQ is:
- periodic, then value doesn't equal zero,
- single shot or disabled, then value equals zero.
The condition should verify if the req_interval is not zero and
req_expire is not zero. The second part of the if condition is
required to avoid starting next CTE_REQ until last one has been
completed.
Signed-off-by: Piotr Pryga <piotr.pryga@nordicsemi.no>
The tests/bluetooth/ctrl_user_ext test fails due to
compilation errors, which are fixed with this PR
Signed-off-by: Andries Kruithof <andries.kruithof@nordicsemi.no>
In order to bring consistency in-tree, migrate all subsystems code to
the new prefix <zephyr/...>. Note that the conversion has been scripted,
refer to zephyrproject-rtos#45388 for more details.
Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
- ISO TX data path for HCI and support for vendor path
- ISO-AL segmentation of framed PDUs
- Insertion of segment headers
- Reconstruction and storing of CIG reference point in ULL
- Calculation and insertion of of Time-Offset
- Exit error spooling in ISO-AL on detecting start
- ISO-AL TX unframed fragmentation
Signed-off-by: Nirosharn Amarasinghe <niag@demant.com>
Signed-off-by: Morten Priess <mtpr@oticon.com>
Rewrite the entire Procedure Response Timeout mechanism.
Use two separate timers for local and remote initiated procedures.
Signed-off-by: Thomas Ebert Hansen <thoh@oticon.com>
Now refactored Connection Parameter Request procedure supports
parameter checking, and implements reject_ext_ind on invalid parameters
Updates to TODO description for remaining work
Signed-off-by: Erik Brockhoff <erbr@oticon.com>
Fix missing execution of Tx demux for LOW LAT ULL variant
which caused connection events not being maintained to
transmit the latest Tx Data enqueued while being inside a
connection event.
Signed-off-by: Vinayak Kariappa Chettimada <vich@nordicsemi.no>
If peer sends invalid data length in response IUT should fix those
when calculating effective data length.
This was affecting following qualification test cases:
LL/CON/PER/BI-10-C
LL/CON/PER/BI-11-C
LL/CON/PER/BI-12-C
LL/CON/CEN/BI-07-C
LL/CON/CEN/BI-08-C
LL/CON/CEN/BI-09-C
Signed-off-by: Szymon Janc <szymon.janc@codecoup.pl>
- Prevent double callback with ADV re-scheduling
For configurations using CONFIG_BT_CTLR_JIT_SCHEDULING, when last
ADV before initiating connection is re-scheduled with a small delay,
the disabled_cb would be called a second time. This would unexpectedly
invoke a second conn setup with illegal parameters.
To avoid this JIT scheduler phenomenon, clear the ADV disabled_cb
when invoked.
- Add priority to LLL header. This allows the conn priority to be
associated with the object. Used in vendor LLL implementation.
Signed-off-by: Morten Priess <mtpr@oticon.com>
There were some references to slave and master left in the unittests
for the refactored LLCP.
These are changed in respectively peripheral and central
Signed-off-by: Andries Kruithof <Andries.Kruithof@nordicsemi.no>
In direction finding connected mode there is a CP bit that is set
data PDU header. The bit was initialized only if CTE transmission
was enabled. In case of reception of a CTE the bit was available
in PDUs but not initialized.
That caused issues in connection maintenance if PDU memory buffers
were reused. PDU were malformed and connections were lost.
Signed-off-by: Piotr Pryga <piotr.pryga@nordicsemi.no>
Accodring to BT 5.3 Core Vol 4, Part E section 7.8.85 the CTE request
procedure has to be disabled as if Host issued the HCI_LE_Connection-
CTE_Request_Enable with enable property set to 0. It means a Controller
should automaticall disable the procedure.
There were no handling of this part of specification.
Signed-off-by: Piotr Pryga <piotr.pryga@nordicsemi.no>
Integrate existing CTE request control procedure code in ULL with
implementation of refactor LLCPs.
The commit includes code responsible for:
- enabling CTE request and scheduling its execution by refactored
LLCPs framework,
- running CTE request periodically
- disabling CTE reqest in case it is running periodic
Signed-off-by: Piotr Pryga <piotr.pryga@nordicsemi.no>
Skip re-initialization of statically initialized PDU struct
fields that are not modified at runtime.
When supporting connection oriented CTE, the cp bit and
resv field used for CTE info are modified, hence
re-initialized these and accordingly reset the values
when just-in-time HCI Tx Data fragmentation is performed
in the Lower Link Layer.
Signed-off-by: Vinayak Kariappa Chettimada <vich@nordicsemi.no>
If there were local LLCP pending and connection lost happened there
were no release of allocated control procedure context.
It caused to exhaustion of available procedures.
Signed-off-by: Piotr Pryga <piotr.pryga@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>
Add configuration of transmission of CTE in connected mode.
The transmission is enabled only for PDUs that have CTE present (CP)
bit set to 1.
Radio peripheral is configued by df_cte_tx_configure to transmit CTE.
The same parameters are set for connected and connectionless mode.
The function was changed to re-use the same code for configuration
of CTE in both modes.
Signed-off-by: Piotr Pryga <piotr.pryga@nordicsemi.no>
HCI_LE_Set_Connection_CTE_Transmit_Parameters host command was
not completely implemented in controller. There were missign
storage of TX parameters in ll_conn instance.
The commit adds missing part of the command handling.
Signed-off-by: Piotr Pryga <piotr.pryga@nordicsemi.no>
If the CTE is attached to data channel packet, the packet must
include information about CTE. The information is stored in
CTEInfo structure that is available in S1 byte of a packet.
Radio checks if the S1 byte is present by verification of
CTE present (CP) bit in byte S0.
The commit add these data to pdu_data structure declaration.
That allows to prepare packet before it is parsed and send
by Radio peripheral.
Besides that there added a new function ull_pdu_data_init that
initlializes fields in pdu_data object that are read only by
lower link layer. CP bit in S0 byte and content of S1 bytes
are examples of such fields.
Signed-off-by: Piotr Pryga <piotr.pryga@nordicsemi.no>
Fix all instances in the controller of -Waddress-of-packed-member by
casting through an intermediate variable and verifying the alignment
with an assertion.
Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>
Signed-off-by: Vinayak Kariappa Chettimada <vich@nordicsemi.no>
Adds reassembly of framed PDUs to ISO adaptation layer.
Reference times are also computed based on anchor points,
transmission latency components and a PDU specific time offset.
Some partial preparations for ISO broadcast can be found for
convenience. This needs to be properly merged, and currently will not
work with both CONFIG_BT_CTLR_CONN_ISO and CONFIG_BT_CTLR_SYNC_ISO
enabled.
Includes fixes and improvements for unframed mode.
Signed-off-by: Asger Munk Nielsen <asmk@oticon.com>
Signed-off-by: Morten Priess <mtpr@oticon.com>
Limit the maximum ACL Tx buffer size to 251 octets due to
implementation restricted use of uint8_t for PDU len field,
also used as the Tx buffer size data type.
Signed-off-by: Vinayak Kariappa Chettimada <vich@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>
Previously the host would handle disconnecting associated CISes and
invoking callbacks when a host ACL conn was disconnected.
This responsibility has now been moved to the controller, which needs to
send a NODE_RX_TYPE_TERMINATE with the CIS handle for proper
disconnection in the host. This is in accordance with the spec.
As disconnect reason, the CIS uses the ACL reason, which is passed to
the host along with the handle.
Signed-off-by: Morten Priess <mtpr@oticon.com>
Fix deadlock in multiple peripheral connection in a device
due to redundant double reservation of node rx buffer during
crossover scenario in Data Length Update procedure.
Data Length Update resize state was reset back to response
wait state when peripheral received an acknowledgment to
local initiated Data Length Request PDU after having already
transitioned to resize state.
Implementation is designed to transition to resize state
under both Data Length Response reception and crossover
scenario of Data Length Request reception when procedure is
local initiated.
Signed-off-by: Vinayak Kariappa Chettimada <vich@nordicsemi.no>
Replace the old master and slave prefixes with the new central and
peripehral ones from the Bluetooth spec v5.3.
Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>
Fix missing reset of connection handle in the LLL context.
During a central connection, if LL reset is called, then
disabled connection context's handle has to be reset
otherwise new connection creation will fail by detecting
that there exists a connection to same peer.
Signed-off-by: Vinayak Kariappa Chettimada <vich@nordicsemi.no>
ULL reference count is checked in ULL_LOW context to decide
if LLL events are pending, but the reference count can be
decremented by the ULL HIGH execution context which can
prevent the set `disabled_cb` function not being called due
to no pending event to produce the done events.
Fixed by checking the reference count in the ULL HIGH
execution context using a mayfly to schedule the check.
Signed-off-by: Vinayak Kariappa Chettimada <vich@nordicsemi.no>
