initializeControllerIfNeeded()

bool fl::SpiChannelEngineAdapter::initializeControllerIfNeeded ( ControllerInfo & ctrl, int clockPin, int dataPin )

private

Initialize controller if needed for this clock pin.

Parameters

ctrl	Controller to initialize
clockPin	Clock pin for configuration
dataPin	Data pin for configuration

Returns

true on success, false on error

Definition at line 151 of file spi_channel_adapter.cpp.hpp.

                                                     {
 
    if (ctrl.isInitialized) {
        // Verify compatibility
        for (int pin : ctrl.assignedClockPins) {
            if (pin == clockPin) {
                return true;  // Already configured for this pin
            }
        }
        FL_WARN("SpiChannelEngineAdapter: Controller " << ctrl.name
                << " already initialized with different clock pin");
        return false;
    }
 
    // Initialize controller based on lane count
    u8 lanes = ctrl.controller->getLaneCount();
 
    if (lanes == 1) {
        SpiHw1::Config config;
        config.bus_num = static_cast<fl::u8>(ctrl.controller->getBusId());
        config.clock_pin = clockPin;
        config.data_pin = dataPin;
        config.clock_speed_hz = 20000000;  // 20 MHz for APA102
        config.max_transfer_sz = 65536;
 
        if (!ctrl.controller->begin(&config)) {
            FL_WARN("SpiChannelEngineAdapter: Failed to initialize " << ctrl.name);
            return false;
        }
    } else {
        // TODO: Multi-lane initialization (SpiHw2/4/8/16)
        FL_WARN("SpiChannelEngineAdapter: Multi-lane init not yet implemented");
        return false;
    }
 
    ctrl.isInitialized = true;
    ctrl.assignedClockPins.push_back(clockPin);
 
    FL_DBG("SpiChannelEngineAdapter: Initialized " << ctrl.name
           << " with clock pin " << clockPin);
 
    return true;
}

References fl::SpiChannelEngineAdapter::ControllerInfo::assignedClockPins, fl::SpiChannelEngineAdapter::ControllerInfo::controller, FL_DBG, FL_WARN, fl::SpiChannelEngineAdapter::ControllerInfo::isInitialized, fl::SpiChannelEngineAdapter::ControllerInfo::name, and fl::vector< T >::push_back().

Referenced by transmitBatch().

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