Tactility/Devices/lilygo-tdeck/Source/devices/KeyboardBacklight.cpp
2026-01-23 17:30:13 +01:00

53 lines
1.8 KiB
C++

#include "KeyboardBacklight.h"
#include <KeyboardBacklight/KeyboardBacklight.h> // Driver
#include <Tactility/hal/i2c/I2c.h>
#include <Tactility/settings/KeyboardSettings.h>
// TODO: Add Mutex and consider refactoring into a class
bool KeyboardBacklightDevice::start() {
if (initialized) {
return true;
}
// T-Deck uses I2C_NUM_0 for internal peripherals
initialized = keyboardbacklight::init(I2C_NUM_0);
if (!initialized) {
return false;
}
// Backlight doesn't seem to turn on until toggled on and off from keyboard settings...
// Or let the display and backlight sleep then wake it up.
// Then it works fine...until reboot, then you need to toggle again.
// The current keyboard firmware sets backlight duty to 0 on boot.
// https://github.com/Xinyuan-LilyGO/T-Deck/blob/master/firmware/T-Keyboard_Keyboard_ESP32C3_250620.bin
// https://github.com/Xinyuan-LilyGO/T-Deck/blob/master/examples/Keyboard_ESP32C3/Keyboard_ESP32C3.ino#L25
// https://github.com/Xinyuan-LilyGO/T-Deck/blob/master/examples/Keyboard_ESP32C3/Keyboard_ESP32C3.ino#L217
auto kbSettings = tt::settings::keyboard::loadOrGetDefault();
keyboardbacklight::setBrightness(kbSettings.backlightEnabled ? kbSettings.backlightBrightness : 0);
return true;
}
bool KeyboardBacklightDevice::stop() {
if (initialized) {
// Turn off backlight on shutdown
keyboardbacklight::setBrightness(0);
initialized = false;
}
return true;
}
bool KeyboardBacklightDevice::setBrightness(uint8_t brightness) {
if (!initialized) {
return false;
}
return keyboardbacklight::setBrightness(brightness);
}
uint8_t KeyboardBacklightDevice::getBrightness() const {
if (!initialized) {
return 0;
}
return keyboardbacklight::getBrightness();
}