100 lines
2.7 KiB
C++
100 lines
2.7 KiB
C++
#include "SpiCookie.h"
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SpiCookie::SpiCookie(address_t spiAddress, gpioId_t chipSelect, std::string spiDev,
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const size_t maxSize, spi::SpiMode spiMode, uint32_t spiSpeed): spiAddress(spiAddress),
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chipSelectPin(chipSelect), spiDevice(spiDev), maxSize(maxSize), spiMode(spiMode),
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spiSpeed(spiSpeed) {
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}
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SpiCookie::SpiCookie(address_t spiAddress, std::string spiDev, const size_t maxSize,
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spi::SpiMode spiMode, uint32_t spiSpeed):
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SpiCookie(spiAddress, gpio::NO_GPIO, spiDev, maxSize, spiMode, spiSpeed) {
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}
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void SpiCookie::getSpiParameters(spi::SpiMode& spiMode, uint32_t& spiSpeed,
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UncommonParameters* parameters) const {
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spiMode = this->spiMode;
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spiSpeed = this->spiSpeed;
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if(parameters != nullptr) {
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parameters->threeWireSpi = uncommonParameters.threeWireSpi;
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parameters->lsbFirst = uncommonParameters.lsbFirst;
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parameters->noCs = uncommonParameters.noCs;
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parameters->bitsPerWord = uncommonParameters.bitsPerWord;
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parameters->csHigh = uncommonParameters.csHigh;
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}
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}
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gpioId_t SpiCookie::getChipSelectPin() const {
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return chipSelectPin;
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}
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size_t SpiCookie::getMaxBufferSize() const {
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return maxSize;
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}
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address_t SpiCookie::getSpiAddress() const {
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return spiAddress;
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}
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std::string SpiCookie::getSpiDevice() const {
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return spiDevice;
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}
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void SpiCookie::setThreeWireSpi(bool enable) {
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uncommonParameters.threeWireSpi = enable;
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}
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void SpiCookie::setLsbFirst(bool enable) {
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uncommonParameters.lsbFirst = enable;
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}
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void SpiCookie::setNoCs(bool enable) {
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uncommonParameters.noCs = enable;
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}
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void SpiCookie::setBitsPerWord(uint8_t bitsPerWord) {
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uncommonParameters.bitsPerWord = bitsPerWord;
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}
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void SpiCookie::setCsHigh(bool enable) {
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uncommonParameters.csHigh = enable;
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}
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void SpiCookie::activateCsDeselect(bool deselectCs, uint16_t delayUsecs) {
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spiTransferStruct.cs_change = deselectCs;
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spiTransferStruct.delay_usecs = delayUsecs;
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}
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void SpiCookie::assignReadBuffer(uint8_t* rx) {
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if(rx != nullptr) {
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spiTransferStruct.rx_buf = reinterpret_cast<__u64>(rx);
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}
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}
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void SpiCookie::assignWriteBuffer(const uint8_t* tx) {
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if(tx != nullptr) {
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spiTransferStruct.tx_buf = reinterpret_cast<__u64>(tx);
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}
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}
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spi_ioc_transfer* SpiCookie::getTransferStructHandle() {
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return &spiTransferStruct;
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}
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void SpiCookie::setFullOrHalfDuplex(bool halfDuplex) {
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this->halfDuplex = halfDuplex;
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}
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bool SpiCookie::isFullDuplex() const {
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return not this->halfDuplex;
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}
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void SpiCookie::assignTransferSize(size_t transferSize) {
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spiTransferStruct.len = transferSize;
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}
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size_t SpiCookie::getCurrentTransferSize() const {
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return spiTransferStruct.len;
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}
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