/* Read ambient light value from phones ALS and decide will the backlight be lit or not
* Restart timer if timer was already running
*/
void Tohkbd::checkDoWeNeedBacklight()
{
if (forceBacklightOn)
{
printf("backlight forced on\n");
tca8424->setLeds(LED_BACKLIGHT_ON);
}
else if (backlightEnabled)
{
if (!backlightTimer->isActive())
{
if (readOneLineFromFile("/sys/devices/virtual/input/input11/als_lux").toInt() < backlightLuxThreshold)
{
printf("backlight on\n");
tca8424->setLeds(LED_BACKLIGHT_ON);
backlightTimer->start();
} else {
tca8424->setLeds(LED_BACKLIGHT_OFF);
}
}
else
{
backlightTimer->start();
}
}
else
{
backlightTimer->stop();
tca8424->setLeds(LED_BACKLIGHT_OFF);
}
}
/* Will check is keyboard still there
*/
void Tohkbd::presenceTimerTimeout()
{
if (checkKeypadPresence())
{
presenceTimer->start();
if (readOneLineFromFile("/sys/class/gpio/gpio" GPIO_INT "/value") == "0")
{
printf("checkKeypadPresence: interrupt is active, trying to handle it now.\n");
handleGpioInterrupt();
}
}
}
/* Key repeat timer timeout. Re-handle key pressed, if key still pressed.
*/
void Tohkbd::repeatTimerTimeout()
{
if (!keyRepeat)
{
/* Check is the interrupt stuck down on first repeat timer timeout*/
if (readOneLineFromFile("/sys/class/gpio/gpio" GPIO_INT "/value") == "0")
{
printf("repeatTimerTimeout: interrupt is active, trying to handle it now.\n");
handleGpioInterrupt();
return;
}
}
keyRepeat = true;
handleKeyPressed(lastKeyCode);
/* Keep backlight on when repeating if it was turned on when key pressed first time */
if (backlightTimer->isActive())
backlightTimer->start();
}
