Method initNavButtons

Devices/unphone/Source/UnPhoneFeatures.cpp:91–143

}

bool UnPhoneFeatures::initNavButtons() {
    if (!initGpioExpander()) {
        LOGGER.error("GPIO expander init failed");
        return false;
    }

    interruptQueue = xQueueCreate(4, sizeof(int));

    buttonHandlingThread.setName("unphone_buttons");
    buttonHandlingThread.setPriority(tt::Thread::Priority::High);
    buttonHandlingThread.setStackSize(3072);
    buttonHandlingThread.setMainFunction(
        [this] {
            return buttonHandlingThreadMain(&this->buttonHandlingThreadInterruptRequest);
        }
    );
    buttonHandlingThread.start();

    uint64_t pin_mask =
        BIT64(pin::BUTTON1) |
        BIT64(pin::BUTTON2) |
        BIT64(pin::BUTTON3);

    gpio_config_t config = {
        .pin_bit_mask = pin_mask,
        .mode = GPIO_MODE_INPUT,
        .pull_up_en = GPIO_PULLUP_ENABLE,
        .pull_down_en = GPIO_PULLDOWN_DISABLE,
        /**
         * We have to listen to the button release (= positive signal).
         * If we listen to button press, the buttons might create more than 1 signal
         * when they are continuously pressed.
         */
        .intr_type = GPIO_INTR_POSEDGE,
    };

    if (gpio_config(&config) != ESP_OK) {
        LOGGER.error("Nav button pin init failed");
        return false;
    }

    if (
        gpio_install_isr_service(0) != ESP_OK ||
        gpio_isr_handler_add(pin::BUTTON1, navButtonInterruptHandler, reinterpret_cast<void*>(pin::BUTTON1)) != ESP_OK ||
        gpio_isr_handler_add(pin::BUTTON2, navButtonInterruptHandler, reinterpret_cast<void*>(pin::BUTTON2)) != ESP_OK ||
        gpio_isr_handler_add(pin::BUTTON3, navButtonInterruptHandler, reinterpret_cast<void*>(pin::BUTTON3)) != ESP_OK
    ) {
        LOGGER.error("Nav buttons ISR init failed");
        return false;
    }

    return true;
}

bool UnPhoneFeatures::initOutputPins() {
    uint64_t output_pin_mask =