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Feature: Full-Duplex Wired Split (#2766)

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refactor(split): Refactor split code for extension

Extract central/peripheral code to allow for plugging in alternate
transports, instead of tying all split logic to BT.

feat(split): Add full-duplex wired split support

* Depends on full-duplex hardware UART for communication.
* Supports all existing central commands/peripheral events, including
  sensors/inputs from peripherals.
* Only one wired split peripheral supported (for now)
* Relies on chosen `zmk,split-uart` referencing the UART device.

docs: Add wired split config docs.

Migrate split to its own dedicated config file, and add details
on wired split config.

Co-authored-by: Nicolas Munnich <98408764+Nick-Munnich@users.noreply.github.com>

fix: Properly override stack size on RP2040

Move the system work queue stack size override on RP2040 ouf of
a `ZMK_BLE` conditional so it is properly applied generally for that
SoC.

---------

Co-authored-by: Nicolas Munnich <98408764+Nick-Munnich@users.noreply.github.com>
This commit is contained in:
Pete Johanson
2025-03-18 00:48:32 -06:00
committed by GitHub
parent 5ba7e260f4
commit 147c340c6e
44 changed files with 2201 additions and 373 deletions
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9
app/include/linker/zmk-split-transport-central.ld Normal file
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@@ -0,0 +1,9 @@
/*
* Copyright (c) 2025 The ZMK Contributors
*
* SPDX-License-Identifier: MIT
*/
#include <zephyr/linker/linker-defs.h>
ITERABLE_SECTION_ROM(zmk_split_transport_central, 4)

9
app/include/linker/zmk-split-transport-peripheral.ld Normal file
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@@ -0,0 +1,9 @@
/*
* Copyright (c) 2025 The ZMK Contributors
*
* SPDX-License-Identifier: MIT
*/
#include <zephyr/linker/linker-defs.h>
ITERABLE_SECTION_ROM(zmk_split_transport_peripheral, 4)