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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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15
app/src/behavior.c
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@@ -17,9 +17,8 @@
#endif
#include <zmk/ble.h>
#if ZMK_BLE_IS_CENTRAL
#include <zmk/split/bluetooth/central.h>
#if IS_ENABLED(CONFIG_ZMK_SPLIT) && IS_ENABLED(CONFIG_ZMK_SPLIT_ROLE_CENTRAL)
#include <zmk/split/central.h>
#endif
#include <drivers/behavior.h>
@@ -95,19 +94,19 @@ int zmk_behavior_invoke_binding(const struct zmk_behavior_binding *src_binding,
case BEHAVIOR_LOCALITY_CENTRAL:
return invoke_locally(&binding, event, pressed);
case BEHAVIOR_LOCALITY_EVENT_SOURCE:
#if ZMK_BLE_IS_CENTRAL // source is a member of event because CONFIG_ZMK_SPLIT is enabled
#if IS_ENABLED(CONFIG_ZMK_SPLIT) && IS_ENABLED(CONFIG_ZMK_SPLIT_ROLE_CENTRAL)
if (event.source == ZMK_POSITION_STATE_CHANGE_SOURCE_LOCAL) {
return invoke_locally(&binding, event, pressed);
} else {
return zmk_split_bt_invoke_behavior(event.source, &binding, event, pressed);
return zmk_split_central_invoke_behavior(event.source, &binding, event, pressed);
}
#else
return invoke_locally(&binding, event, pressed);
#endif
case BEHAVIOR_LOCALITY_GLOBAL:
#if ZMK_BLE_IS_CENTRAL
for (int i = 0; i < ZMK_SPLIT_BLE_PERIPHERAL_COUNT; i++) {
zmk_split_bt_invoke_behavior(i, &binding, event, pressed);
#if IS_ENABLED(CONFIG_ZMK_SPLIT) && IS_ENABLED(CONFIG_ZMK_SPLIT_ROLE_CENTRAL)
for (int i = 0; i < ZMK_SPLIT_CENTRAL_PERIPHERAL_COUNT; i++) {
zmk_split_central_invoke_behavior(i, &binding, event, pressed);
}
#endif
return invoke_locally(&binding, event, pressed);