lvgl-module/symbols.c:
- canvas: full LVGL9 docs API (get_buf, get_image, get_px, get_draw_buf,
set_palette, copy_buf, init_layer, finish_layer, buf_size) – was only 5 symbols
- draw_buf: create/destroy/init/dup/copy/goto/clear/width_to_stride/align/palette/from_image/to_image
- cache: lv_draw_buf_invalidate_cache, flush_cache, lv_image_cache_drop – critical bugfix for
GameBoy (and any direct framebuffer) where raw buf mutated but image cache stale -> FPS but no image.
- draw layer helpers, image scale/rotation/pivot/offset, transform scales for GB 2x/3x integer scaling
Reason blank screen: lv_canvas in LVGL9 is lv_image backed by draw_buf. Mutating raw pointer
without lv_image_cache_drop + invalidate_cache leaves stale texture. Timer was calling
lv_obj_invalidate only. Now exports needed symbols and app fixed to drop cache each frame.
mDNS (preserve from local WIP, sits on top of 60764979 'kidsOS-XXXX' mdns init):
- Tactility/network/Mdns.h/cpp: C++ browse + resolveHostname wrappers around esp-idf mdns 1.3.2
(PTR query, txt records, address extraction, POSIX stub)
- TactilityC/tt_mdns.h/cpp: C copy-based API for ELF apps (TT_MDNS_MAX_RESULTS 32,
capped addresses/txt, hostname->IP resolve)
- TactilityC/tt_init.cpp: export tt_mdns_is_available / browse / resolve_hostname symbols
Test plan:
- firmware build for es3c28p --dev
- release-sdk-current.py
- GameBoy app build against new SDK (0 missing symbols expected)
- push both branches to personal gitea
Migrated devices to kernel drivers:
- guition-jc3248w535c
- m5stack-core2
- m5stack-cores3
- m5stack-papers3
New drivers:
- axp192-module
- axp2101-module
Fixes:
- Fix SD card LDO for P4 devices
- Updated PowerOff app to work with kernel displays
- Fix for `lvgl_try_lock()` timing
- Fix for touch events with slow updating displays
Improvements:
- `GuiService` now keeps trying to lock to prevent silent failures caused by drivers.
- `GuiService` now uses lvgl-module calls for locking/unlocking
- display driver now has capability `DISPLAY_CAPABILITY_SLOW_REFRESH`
- RGB display driver added
- display_driver API:
- Added software-based display rotation for screens without hardware rotation support.
- Improved display capability detection across supported display drivers.
- lvgl_display driver:
- Improved framebuffer handling for smoother, more reliable display updates.
- Display gap and rotation behavior now adapts more accurately to hardware capabilities.
- Migration Crowpanel 5" basic & advance to kernel drivers
- Improve KernelDisplay app: brightness controls are hidden for displays that only support on/off operation
- device.py now allows for (non-ambiguous) partial device IDs
- TactilityKernel: Implement more tests
- Added modular device support and devicetree bindings for ILI9341, ILI9488, CST816S, XPT2046, and GPIO button input, updating several board configurations for display/touch/backlight/keyboard/battery.
- Added a setting to control deprecated HAL usage (device property + Kconfig).
- Added kernel base drivers for: display, pointer (touch, mouse, etc.), keyboard, adc, power supply and backlight
- Implement new kernel driver modules: `st7789-module` and `gt911-module`
- Implement ESP32 ADC "oneshot" kernel driver
- Implement ESP32 backlight kernel driver with ledc API
- Implemented `battery-sense` driver that allows for voltage measurement and creates a power supply child device
- Updated github actions
- Updated flash scripts
- Fix for esp32 legacy driver conflict with ADC
- Created separate `lilygo-tdeck` and `lilygo-tdeck-plus` devices
- Created `lilygo-module` with LilyGO kernel drivers
- Fix for intermittent errors in build related to code generation of `devicetree.c`
- `lvgl-module` can now map kernel drivers onto LVGL devices
- Created `KernelDisplayApp` as a mirror of `HalDisplayApp` (formerly `DisplayApp`)
- Removed `struct` and `enum` prefix in a lot of kernel driver cpp source files
- `lilygo-tdeck` and `lilygo-tdeck-plus` are now fully relying on kernel drivers and don't use any of the old HAL
* Tab5 camera + other stuff
Tab5 camera driver - SC2356
Custom SliderBox widget - slider with plus and minus buttons + value label and snapping
Rtc Time service + rtc api
Sdk release - only include drivers built for that specific target, eg: sc2356 driver is mipi / p4 only.
No more hardcoded manual sdk cmakelists
New function to find device by compatible string match. no more static cast bool wildness when trying to match a single device (like M5Stack PaperS3 for example)
* feedback + fixes
Fixed external app user data path.
fix(gui): block app teardown until onHide() completes, preventing ELF unload racing a still-running app
added camera device type and api
* drain the snake sssem
---------
Co-authored-by: Ken Van Hoeylandt <git@kenvanhoeylandt.net>
* Bluetooth LE addition
* fixes
* use the psram!
helps a little on S3 (t-deck)
* custom device name
* Update symbols.c
* Feedback + fixes
Fixes external app start/stop server (child devices)
Fixes BtManage causing a full system hang upon disabling bt when a device is connected to the host.
* updoot
* more updoot
* move back!
* Revert "move back!"
This reverts commit d3694365c634acc5db62ac59771c496cb971a727.
* fix some of the things
* Addressing feedback? hmm
* Fixes
Bug 1 — Reconnect loop / Reconnect not working fixed
Bug 2 — Name-only advertising overwrites HID advertising
Bug 3 — BleHidDeviceCtx leak on re-enable
Enhancement — HID device auto-start on radio re-enable
* stuff...
* update for consistency with others
* fix crashes
and some bonus symbols
* a few symbols, i2c speed, cdn message
100kHz i2c speed seems to be more compatible with m5stack modules...and probably in general.
cdn message no longer applies
* Hide BT Settings when bt not enabled
* Addressing things and device fixes
* Missed one!
* stuff
Font size set to 18 for 800x480 displays
Fix web server dashboard not rendering when sdcard isn't present
Added new driver modules
- BM8563 RTC
- RX8130CE RTC
- MPU6886 IMU
- QMI8658 IMU
- M5PM1 Power Management Chip
Applied the above modules to applicable devicetrees.
Added new device: M5Stack StickS3
Added new M5Stack Tab5 St7123 variant.
ButtonControl changed to use interupts and xQueue, added AppClose action.
And some bonus symbols of course, the apps are hungry for symbols.
- UiDensity moved to lvgl-module
- Deleted tt_hal and tt_hal_gpio (breaks apps, but will fix those right after merging)
- Added I2C 8 bit register operations
- Added device.properties to simulator
- Improved Tab5 hardware init, implement audio
- Add README.md to kernel
**New Features**
* Runtime font accessors and new symbol fonts for text, launcher, statusbar, and shared icons.
* Added font height base setting to device.properties
* Text fonts now have 3 sizes: small, default, large
**Improvements**
* Renamed `UiScale` to `UiDensity`
* Statusbar, toolbar and many UI components now compute heights and spacing from fonts/density.
* SSD1306 initialization sequence refined for more stable startup.
* Multiple image assets replaced by symbol-font rendering.
* Many layout improvements related to density, font scaling and icon scaling
* Updated folder name capitalization for newer style
* **New Features**
* Added Material Design symbol fonts and LVGL font aliases for launcher, status bar, and shared UI icons.
* **Style**
* Migrated app icons across the UI to the new symbol font system.
* Updated launcher button sizing, font styling, recoloring and icon text color for consistency.
* Default text/icon font macros set for consistent sizing across the UI.
* **Documentation**
* Updated third‑party notices to include Material Design Icons links.
Auto starts the web server in AP mode with generated SSID and Password.
For small devices.... or any i guess.
Hidden by default.
May need adjustments to suit even smaller screens than the waveshare GEEK.
And a few symbols for good measure. :)
- Implement SPI devices in dts files for all devices
- Removed `tt::hal::spi` HAL and its configurations
- Fix for devicetree generator "boolean" support
- Remove unused custom locks in all `DisplayDevice` implementations
- Fixed some bugs with devices
- Updated XPT2046 driver
- Fix for `WifiEsp` deadlock
- Export a lot of new `math.h` symbols with `tt_init.cpp`
- Created `SpiDeviceLock` in `TactilityCore` as a wrapper for kernel SPI locking
- Improved `TactilityKernel` SPI driver.
- Add kernel support for SPI driver
- Add kernel support for UART driver
- Implemented ESP32 UART kernel driver
- Update existing UART-related code in Tactility to use new kernel driver
- Remove UART from tt::hal::Configuration
- Remove tt_hal_uart functionality but keep functions for now
- Update devicetrees for UART changes
- Kernel mutex and recursive mutex: improved locking API design
- Other kernel improvements
- Added device_exists_of_type() and device_find_by_name()
* **New Features**
* Added public accessors for querying module/device start and ready state.
* **Refactor**
* Internal state moved to opaque internal objects; module/device/driver initializers now explicitly initialize internal pointers.
* Lifecycle handling updated to construct/destruct internal state and use accessors.
* **Tests**
* Tests updated to use public accessors and explicit construct/destruct lifecycle calls.
* **Chores**
* Test build/include paths and small metadata updated.
* **New Features**
* Expanded public device and driver APIs (accessors, sync, lifecycle, binding) and a module construct+start helper.
* Added kernel symbol registry and new exported symbols (lvgl, C++ nothrow, I2S APIs, additional math funcs).
* **Refactor**
* Renamed device traversal APIs for consistency (device_for_each*).
* Moved inline helpers to explicit public declarations.
* **Chores**
* Replaced several shell release scripts with Python-based SDK release tooling.
* **Style**
* Header naming consistency fixes.
* **New Features**
* Centralized module management with global symbol resolution
* Level-aware logging with colored prefixes and millisecond timestamps
* **Breaking Changes**
* ModuleParent hierarchy and getModuleParent() removed
* Logging API and adapter model replaced; LogLevel-driven log_generic signature changed
* **Improvements**
* Unified, simplified module registration across build targets
* Tests updated to reflect new module lifecycle and global symbol resolution
* **New Features**
- Adds module symbol support and per-module symbol tables, including LVGL symbol exports moved into a dedicated table.
* **API**
- Adds symbol-resolution APIs and an accessor to enable dynamic lookup between modules.
* **Bug Fixes / Chores**
- Explicitly initializes module symbol pointers across device and platform modules to avoid uninitialized state.
* **Tests**
- Updates tests to account for symbol pointer initialization.
* **New Features**
* Added a standalone LVGL module and enabled LVGL support in the simulator for richer local UI testing.
* **Refactor**
* HAL and LVGL split into distinct modules; startup and device attach/detach flows reorganized for clearer lifecycle management.
* Public APIs tightened with clearer nullability/documentation.
* **Bug Fixes**
* More consistent LVGL start/stop and device attach/detach behavior for improved stability.
Adolfo Reyna