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Piotr Pryga 0a497fcd55 Bluetooth: Controller: df: Fix wrong ant after switch pattern exhausted
Direction finding functionality does antenna switching during CTE
reception in AoA mode and CTE transmission in AoD mode. Antennas are
switched according to user provided antenna switch pattern. If a CTE
length is enough to exhaust all antenna ids in a switch pattern then
radio should loopback to reference antenna and continue from switching
from that. Current implementation loops back to antenna that is just
after reference antenna in the switch pattern.

The commit fixes that by insertion of the reference antenna
at the end of switch pattern. Radio will operate as it was before,
it will restart switching from the same index in a switch pattern.
At the same time reference antenna will be inserted into the loop
if switching pattern is exhausted. That also means, the maximum
number of antenna ids in a switch pattern has to be decreased by
one.

The commit also fixes lower bound in the BT_CTLR_DF_MAX_ANT_SW_PATTERN-
_LEN that should be equal two. It was set to three, because in the
past the antenna at index zero was used for reception of a PDU.
Now this antenna ID is provided by device tree configuration.

Signed-off-by: Piotr Pryga <piotr.pryga@nordicsemi.no>
2022-05-16 10:08:48 +02:00
.github ci: twister generates testplan.json 2022-05-13 15:53:04 -04:00
arch arch: arm: Add support for multiple zero-latency irq priorities 2022-05-13 08:38:28 -05:00
boards boards: hifive1_revb: add pinctrl configs for spi 2022-05-16 09:41:40 +02:00
cmake soc: esp32: add Espressif HAL config 2022-05-11 10:47:27 +02:00
doc doc: services: storage: add flash_img API 2022-05-15 21:33:54 +02:00
drivers drivers: gpio: nrf: fix pin number used in getting GPIOTE channel 2022-05-16 09:41:04 +02:00
dts drivers: kscan: Add CAP1203 driver 2022-05-15 21:31:54 +02:00
include/zephyr pm: device_runtime: return -ENOTSUP if PM not supported 2022-05-15 21:34:46 +02:00
kernel kernel: Fix gathering of runtime thread stats 2022-05-13 10:19:53 -05:00
lib lib/libc/minimal: Move sqrt/sqrtf from samples 2022-05-14 08:49:36 +09:00
misc misc: generated: update configs.c template with <zephyr/...> prefix 2022-05-09 12:45:29 -04:00
modules modules: hal_infineon: added initial Kconfig and CMakeLists.txt 2022-05-13 21:34:59 +02:00
samples samples: net: wifi: add mikroe wifi bt click 2022-05-15 21:34:32 +02:00
scripts twister: add support for platform_type filter 2022-05-14 14:49:59 -04:00
share cmake: zephyr-package: add message mode 2022-03-23 13:24:41 +01:00
soc soc: arm: cypress: Update PSoC 6 implementation to use mtb-pdl-cat1 2022-05-13 21:34:59 +02:00
submanifests west.yml: allow users to easily add more modules 2021-10-07 13:45:42 +02:00
subsys Bluetooth: Controller: df: Fix wrong ant after switch pattern exhausted 2022-05-16 10:08:48 +02:00
tests Bluetooth: controller: Implement cross connection CPR mutual exclusion 2022-05-16 09:40:36 +02:00
.checkpatch.conf checkpatch: Ignore IS_ENABLED_CONFIG warnings 2021-10-18 08:28:01 -04:00
.clang-format clang-format: Change lines length limit from 80 to 100 2021-05-06 08:13:32 -05:00
.codecov.yml
.editorconfig editorconfig: Improve verbosity 2022-04-28 08:55:39 -04:00
.gitattributes gitattributes: consider SVG files generated 2021-10-14 12:42:44 -04:00
.gitignore gitignore: add .clangd to the ignore list 2022-04-24 19:47:40 +02:00
.gitlint gitlint: Stop ignoring merge, revert, fixup and squash commits 2022-01-10 08:13:36 -05:00
.mailmap mailmap: update mailmap file with some stray emails 2021-06-17 14:15:41 -04:00
.uncrustify.cfg uncrustify: force a single EOF newline 2021-11-03 16:14:20 -04:00
CMakeLists.txt sparse: add an address space and a __sparse_force annotation 2022-05-03 09:37:08 +02:00
CODE_OF_CONDUCT.md coc: move to markdown format 2019-01-24 15:37:15 -05:00
CODEOWNERS CODEOWNERS: esp32: pinctrl: add dt-bindings ownership 2022-05-13 11:25:58 -07:00
CONTRIBUTING.rst doc: Fixed a link in CONTRIBUTING.rst 2019-02-28 12:46:04 -08:00
Kconfig kconfig: Clean up header comments and make them consistent 2019-11-04 17:31:27 -05:00
Kconfig.zephyr build: make non zephyr/ include prefix configurable 2022-04-08 19:03:32 +02:00
LICENSE
MAINTAINERS.yml MAINTAINERS: Add 'Microchip SAM Platforms' 2022-05-13 12:32:00 -04:00
README.rst doc: update architectures in README 2022-05-06 11:29:28 +02:00
VERSION VERSION: bump patchlevel to 99 2022-02-21 19:05:46 -05:00
version.h.in cmake: version.h generation performed at build time 2022-02-08 07:50:24 -05:00
west.yml west: Update hal_infineon and hal_cypress 2022-05-13 21:34:59 +02:00
zephyr-env.cmd scripts: remove west from scripts/ 2019-01-29 10:15:01 +01:00
zephyr-env.sh everywhere: fix typos 2022-03-18 13:24:08 -04:00

.. raw:: html

   <a href="https://www.zephyrproject.org">
     <p align="center">
       <img src="doc/_static/images/logo-readme.svg">
     </p>
   </a>

   <a href="https://bestpractices.coreinfrastructure.org/projects/74"><img
   src="https://bestpractices.coreinfrastructure.org/projects/74/badge"></a>
   <a
   href="https://github.com/zephyrproject-rtos/zephyr/actions/workflows/twister.yaml?query=branch%3Amain">
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The Zephyr Project is a scalable real-time operating system (RTOS) supporting
multiple hardware architectures, optimized for resource constrained devices,
and built with security in mind.

The Zephyr OS is based on a small-footprint kernel designed for use on
resource-constrained systems: from simple embedded environmental sensors and
LED wearables to sophisticated smart watches and IoT wireless gateways.

The Zephyr kernel supports multiple architectures, including ARM (Cortex-A,
Cortex-R, Cortex-M), Intel x86, ARC, Nios II, Tensilica Xtensa, and RISC-V,
SPARC, MIPS, and a large number of `supported boards`_.

.. below included in doc/introduction/introduction.rst


Getting Started
***************

Welcome to Zephyr! See the `Introduction to Zephyr`_ for a high-level overview,
and the documentation's `Getting Started Guide`_ to start developing.

.. start_include_here

Community Support
*****************

Community support is provided via mailing lists and Discord; see the Resources
below for details.

.. _project-resources:

Resources
*********

Here's a quick summary of resources to help you find your way around:

* **Help**: `Asking for Help Tips`_
* **Documentation**: http://docs.zephyrproject.org (`Getting Started Guide`_)
* **Source Code**: https://github.com/zephyrproject-rtos/zephyr is the main
  repository; https://elixir.bootlin.com/zephyr/latest/source contains a
  searchable index
* **Releases**: https://github.com/zephyrproject-rtos/zephyr/releases
* **Samples and example code**: see `Sample and Demo Code Examples`_
* **Mailing Lists**: users@lists.zephyrproject.org and
  devel@lists.zephyrproject.org are the main user and developer mailing lists,
  respectively. You can join the developer's list and search its archives at
  `Zephyr Development mailing list`_. The other `Zephyr mailing list
  subgroups`_ have their own archives and sign-up pages.
* **Nightly CI Build Status**: https://lists.zephyrproject.org/g/builds
  The builds@lists.zephyrproject.org mailing list archives the CI nightly build results.
* **Chat**: Real-time chat happens in Zephyr's Discord Server. Use
  this `Discord Invite`_ to register.
* **Contributing**: see the `Contribution Guide`_
* **Wiki**: `Zephyr GitHub wiki`_
* **Issues**: https://github.com/zephyrproject-rtos/zephyr/issues
* **Security Issues**: Email vulnerabilities@zephyrproject.org to report
  security issues; also see our `Security`_ documentation. Security issues are
  tracked separately at https://zephyrprojectsec.atlassian.net.
* **Zephyr Project Website**: https://zephyrproject.org

.. _Discord Invite: https://chat.zephyrproject.org
.. _supported boards: http://docs.zephyrproject.org/latest/boards/index.html
.. _Zephyr Documentation: http://docs.zephyrproject.org
.. _Introduction to Zephyr: http://docs.zephyrproject.org/latest/introduction/index.html
.. _Getting Started Guide: http://docs.zephyrproject.org/latest/getting_started/index.html
.. _Contribution Guide: http://docs.zephyrproject.org/latest/contribute/index.html
.. _Zephyr GitHub wiki: https://github.com/zephyrproject-rtos/zephyr/wiki
.. _Zephyr Development mailing list: https://lists.zephyrproject.org/g/devel
.. _Zephyr mailing list subgroups: https://lists.zephyrproject.org/g/main/subgroups
.. _Sample and Demo Code Examples: http://docs.zephyrproject.org/latest/samples/index.html
.. _Security: http://docs.zephyrproject.org/latest/security/index.html
.. _Asking for Help Tips: https://docs.zephyrproject.org/latest/getting_started/index.html#asking-for-help