fsfw-hal/linux/spi/SpiCookie.cpp

#include "SpiCookie.h"

SpiCookie::SpiCookie(address_t spiAddress, gpioId_t chipSelect, std::string spiDev,
        const size_t maxSize, spi::SpiModes spiMode, uint32_t spiSpeed):
        SpiCookie(spi::SpiComIfModes::REGULAR, spiAddress, chipSelect, spiDev, maxSize, spiMode,
                spiSpeed, nullptr, nullptr) {

}

SpiCookie::SpiCookie(address_t spiAddress, std::string spiDev, const size_t maxSize,
        spi::SpiModes spiMode, uint32_t spiSpeed):
                SpiCookie(spiAddress, gpio::NO_GPIO, spiDev, maxSize, spiMode, spiSpeed) {
}

SpiCookie::SpiCookie(address_t spiAddress, gpioId_t chipSelect, std::string spiDev, const size_t maxSize,
        spi::SpiModes spiMode, uint32_t spiSpeed, spi::send_callback_function_t callback, void *args):
		        SpiCookie(spi::SpiComIfModes::CALLBACK, spiAddress, chipSelect, spiDev, maxSize,
		                spiMode, spiSpeed, callback, args) {
}

SpiCookie::SpiCookie(spi::SpiComIfModes comIfMode, address_t spiAddress, gpioId_t chipSelect,
        std::string spiDev, const size_t maxSize, spi::SpiModes spiMode, uint32_t spiSpeed,
        spi::send_callback_function_t callback, void* args): spiAddress(spiAddress),
                chipSelectPin(chipSelect), spiDevice(spiDev), comIfMode(comIfMode),
                maxSize(maxSize), spiMode(spiMode), spiSpeed(spiSpeed), sendCallback(callback),
                callbackArgs(args) {
}

spi::SpiComIfModes SpiCookie::getComIfMode() const {
    return this->comIfMode;
}

void SpiCookie::getSpiParameters(spi::SpiModes& spiMode, uint32_t& spiSpeed,
        UncommonParameters* parameters) const {
    spiMode = this->spiMode;
    spiSpeed = this->spiSpeed;

    if(parameters != nullptr) {
        parameters->threeWireSpi = uncommonParameters.threeWireSpi;
        parameters->lsbFirst = uncommonParameters.lsbFirst;
        parameters->noCs = uncommonParameters.noCs;
        parameters->bitsPerWord = uncommonParameters.bitsPerWord;
        parameters->csHigh = uncommonParameters.csHigh;
    }
}

gpioId_t SpiCookie::getChipSelectPin() const {
    return chipSelectPin;
}

size_t SpiCookie::getMaxBufferSize() const {
    return maxSize;
}

address_t SpiCookie::getSpiAddress() const {
    return spiAddress;
}

std::string SpiCookie::getSpiDevice() const {
    return spiDevice;
}

void SpiCookie::setThreeWireSpi(bool enable) {
    uncommonParameters.threeWireSpi = enable;
}

void SpiCookie::setLsbFirst(bool enable) {
    uncommonParameters.lsbFirst = enable;
}

void SpiCookie::setNoCs(bool enable) {
    uncommonParameters.noCs = enable;
}

void SpiCookie::setBitsPerWord(uint8_t bitsPerWord) {
    uncommonParameters.bitsPerWord = bitsPerWord;
}

void SpiCookie::setCsHigh(bool enable) {
    uncommonParameters.csHigh = enable;
}

void SpiCookie::activateCsDeselect(bool deselectCs, uint16_t delayUsecs) {
    spiTransferStruct.cs_change = deselectCs;
    spiTransferStruct.delay_usecs = delayUsecs;
}

void SpiCookie::assignReadBuffer(uint8_t* rx) {
    if(rx != nullptr) {
        spiTransferStruct.rx_buf = reinterpret_cast<__u64>(rx);
    }
}

void SpiCookie::assignWriteBuffer(const uint8_t* tx) {
    if(tx != nullptr) {
        spiTransferStruct.tx_buf = reinterpret_cast<__u64>(tx);
    }
}

void SpiCookie::setCallbackMode(spi::send_callback_function_t callback,
        void *args) {
    this->comIfMode = spi::SpiComIfModes::CALLBACK;
    this->sendCallback = callback;
    this->callbackArgs = args;
}

spi_ioc_transfer* SpiCookie::getTransferStructHandle() {
    return &spiTransferStruct;
}

void SpiCookie::setFullOrHalfDuplex(bool halfDuplex) {
    this->halfDuplex = halfDuplex;
}

bool SpiCookie::isFullDuplex() const {
    return not this->halfDuplex;
}

void SpiCookie::assignTransferSize(size_t transferSize) {
    spiTransferStruct.len = transferSize;
}

size_t SpiCookie::getCurrentTransferSize() const {
    return spiTransferStruct.len;
}

void SpiCookie::setSpiSpeed(uint32_t newSpeed) {
    this->spiSpeed = newSpeed;
}

void SpiCookie::setSpiMode(spi::SpiModes newMode) {
    this->spiMode = newMode;
}

void SpiCookie::getCallback(spi::send_callback_function_t *callback,
        void **args) {
    *callback = this->sendCallback;
    *args = this->callbackArgs;
}