Changed CONFIG_ZMK_STUDIO_TRANSPORT_UART to automatically enable itself
whenever a zmk,studio-rpc-uart chosen node is specified. The previous
behavior of enabling if CONFIG_ZMK_USB was enabled broke builds when
CONFIG_ZMK_STUDIO was enabled but the chosen node wasn't specified.
To be able to save on flash space, for layouts on space constrained
devices that don't require rotation, make key rotation props
optional behind a new Kconfig flag.
The "arg" field on nanopb structs is a void* because it is shared
between the encode and decode callbacks, even though the encode
callback probably should not modify the data. We are passing const data
using this non-const pointer, which causes warnings about discarding
const. This commit explicitly casts to void* to suppress these warnings.
* To avoid tons of migration, extra flash writes, etc, we keep
the keymaps and settings using a key position index that's tied
to the stock layout, and at runtime mapping key positions as
needed.
* More fine grained status reporting when saving changes. Needed to we
can notify the client if we've got errors saving settings due to
running out of space, etc.
* Return the max layer name lenght in the keymap payload, for the UI to
leverage.
* Add keymap API for getting/setting a bindings
in keymap layers.
* Add layer move support via intemediary ordering array.
* Add settings storage for keymap changes.
* 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>
