* Split centrals to scan with their identity so they receive direct
advertising packets.
* Split peripherals to use direct advertising if they have an existing
bond to a split central.
This commit adds a new GATT characteristics on the peripheral side
and wires it up to read sensor values. The central side subscribes
to this new characteristics and replays sensor values on its side.
Co-authored-by: Peter Johanson <peter@peterjohanson.com>
* Proper usage of bt_uuid_cmp.
* Central's don't start scanning for peripherals if
`ZMK_BLE_CLEAR_BONDS_ON_START` is enabled.
* Split peripherals don't advertize if
`ZMK_BLE_CLEAR_BONDS_ON_START` is enabled.
* Move away from DT_LABEL.
* Move to DEVICE_DT_GET for non-behavior device access.
* Move various drivers to `gpio_spec_dt` and `DT` related macros.
* Remove mcp23017 while at it, since better upstream driver is
available.
* Add strlcpy from public domain version.
* Leverage strlcpy to detect truncation of behavior dev strs, and log.
* Use `offsetof` for cleaner detection on peripheral side.
* Use Zephyr auto CCC discovery instead of doing it ourselves.
* Split service versus characteristic discovery into dedicated
steps in the flow.
* Fix for not searching properly when connecting to a peripheral
a second time.
* GATT characteristic allowing passng data + behavior
label to invoke the behavior on the peripheral side.
* Behaviors have a locality setting to specify where they run.
* Build reset/power/RGB on peripheral.
* Make it easier to use *just* event payloads by defining the data,
and then having event manager macros generate "wrapper structs"
* Improve is_*/cast_* APIs to hide details of full event struct.
* Create `zmk_event_t` typedef to pass to event handlers.
* Bring event names inline w/ consistent `zmk_` prefix.
Aligns *.h and *.c to underscore naming convention.
These were kept (with warnings) for backwards compatibility with external boards/shields:
- kscan-mock.h
- matrix-transform.h
They should be removed in the future.
PR: #523
* Add timestamps to position events and behaviors.
- Take original event timestamps into consideration so nested tap-holds have proper timing.
- Add position and timestamp to keycode state changed event so the one-shot behavior can properly identify other keypresses and timings.
- Add timestamp to position events received from peripheral
* reduce number of arguments to behaviors
* Add back in profiles, not using Zephyr
BT identity infrastructure.
* Restore additional `&bt` commands for profile
operations.
* Fix for split pairing and subscriptions, since
Zephyr persists subscriptions across connects.
* Remove keymap from peripheral builds, reduces
firmware size, and avoids unneeded attempts
to send HID data.
* Add `bt` behavior that can be used to perform certain actions,
such as next/prev identity, reset identity, etc.
NOTE: Multiple identities is only supported for non-split shields,
due to missing Zephyr identity functionality for dual
central/peripheral devices.
* Proper bond reset tied to action, that honors peripheral bonds,
so folks can reset and pair to other hosts, without breaking
bonds between splt halves.
