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feat(studio): Initial RPC infrastructure and subsystems.

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* UART and BLE/GATT transports for a protobuf encoded RPC
  request/response protocol.
* Custom framing protocol is used to frame a give message.
* Requests/responses are divided into major "subsystems" which
  handle requests and create response messages.
* Notification support, including mapping local events to RPC
  notifications by a given subsystem.
* Meta responses for "no response" and "unlock needed".
* Initial basic lock state support in a new core section, and allow specifying
  if a given RPC callback requires unlocked state or not.
* Add behavior subsystem with full metadata support and examples of
  using callback to serialize a repeated field without extra stack space needed.

Co-authored-by: Cem Aksoylar <caksoylar@users.noreply.github.com>
This commit is contained in:
Peter Johanson
2024-02-19 08:48:20 +00:00
committed by Pete Johanson
parent ea64fcaf71
commit feda96eb40
28 changed files with 2840 additions and 9 deletions
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15
app/src/studio/CMakeLists.txt Normal file
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# Copyright (c) 2024 The ZMK Contributors
# SPDX-License-Identifier: MIT
zephyr_linker_sources(DATA_SECTIONS ../../include/linker/zmk-rpc-subsystems.ld)
zephyr_linker_sources(SECTIONS ../../include/linker/zmk-rpc-subsystem-handlers.ld)
zephyr_linker_sources(SECTIONS ../../include/linker/zmk-rpc-event-mappers.ld)
zephyr_linker_sources(SECTIONS ../../include/linker/zmk-rpc-transport.ld)
target_sources(app PRIVATE msg_framing.c)
target_sources(app PRIVATE rpc.c)
target_sources(app PRIVATE core.c)
target_sources(app PRIVATE behavior_subsystem.c)
target_sources(app PRIVATE core_subsystem.c)
target_sources_ifdef(CONFIG_ZMK_STUDIO_TRANSPORT_UART app PRIVATE uart_rpc_transport.c)
target_sources_ifdef(CONFIG_ZMK_STUDIO_TRANSPORT_BLE app PRIVATE gatt_rpc_transport.c)