- Create `USB_HOST_TYPE` base driver in TactilityKernel
- Refactor esp32_usbhost dts format, and create child devices dynamically
- Use PSRAM for task stacks where possible: saving 20 kB from just the task stacks, but roughly 30 kB when nothing is connected.
- Allow the user to disable USB host interface in the USB settings app, saving an additionaly 20 kB of IRAM when nothing was connected.
- Change listener-based APIs to subscribe and poll/await pattern. This avoids callstacks of apps and services leaking into the USB API
This results in big IRAM savings: 30 kB when USB host is on and nothing is connected, and 50 kB total when USB host is disabled.
This brings the total free IRAM after boot from roughly 170 kB to 200 kB (host enabled) or 220 kB (host disabled).
- Implement ST7305 driver at `Drivers/st7305-module`
- Rename `cl32` device project to `cl32-v02-v03` and removed v0.4 drivers
- Implement CL-32 v0.4 device as `cl32-v04`: display, keyboard, backlight/frontlight driver and power supply
- Remove `TT_LAUNCHER_APP_ID` (it was always the same setting)
- Remove `TT_LVGL_STATUSBAR_COLORS_INVERTED` (unused since recent changes)
- Wi-Fi only refreshes once, so users can navigate with the keyboard through the results, without constently resetting focus/selection. After initial scan, manual scans can be requested via the toolbar.
- Themes: material and material_mono theme don't show post-selection border animation anymore. It looks weird on monochrome devices and it doesn't add anything on other devices either.
- Made `merge.sh` executable
- backlight driver API change: min/max brightness functions are now optional, defaults to [0, 255]
- Implemented themes with LSS: material, material mono
- Implemented grid-based navigation
- Added new Launcher
- Updated Appearance app to add theme configuration
- Updated various apps to improve UX/UI
- Added LVGL widgets: cards, badges, chips, icon buttons
- Added support for round/rounded displays
- Added the concept of insets to LVGL and implemented it in toolbar + statusbar
- Terminal app now hides toolbar by default, but tapping the terminal toggles visibility
- File browsing now opens the configured user-data location by default
- Added missing licenses to subprojects
- Updated README.md screenshots and intro text
DTS modules (device modules) often have a single source file with an empty `struct Module`.
The module's yaml file now allows a `dts-only` boolean to be set, so the source file becomes optional.
`devicetree.yaml` is renamed everywhere to `module.yaml`
- Enable BT by default in DTS, and create separate radio on/of functionality (like recent Wi-Fi changes)
- Bluetooth event handling now uses queued subscriptions, improving event delivery and application responsiveness.
- Improved synchronization of Bluetooth advertising, connections, HID, MIDI, and SPP operations.
- Enhanced cleanup during Bluetooth shutdown and subscription removal.
- Clarified Bluetooth start and stop behavior.
- Improved wifi driver subscription stability to prevent endless loops
Event handling:
- Added unified event handling for application, system, and Wi‑Fi events.
- Updated all apps to reflect event handling changes
Wi-Fi:
- Refactored event handling from listener interface to task & event group.
- Added direct Wi‑Fi radio controls and improved event subscriptions.
- Wi‑Fi screens now refresh asynchronously and handle unavailable devices more gracefully.
- Enabled Wi‑Fi by default on in dts files, but radio on/off is still done by code. The main reason was reliable event subscription and consistent devicetree states.
- Improved Wi‑Fi shutdown cleanup and radio-state handling.
Other:
- Renamed the Kernel Display app to Display.
