eive-obsw/linux/spi/SpiCookie.cpp

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2021-03-04 18:29:28 +01:00
#include "SpiCookie.h"
SpiCookie::SpiCookie(address_t spiAddress, gpioId_t chipSelect, std::string spiDev,
const size_t maxSize, spi::SpiMode spiMode, uint32_t spiSpeed): spiAddress(spiAddress),
chipSelectPin(chipSelect), spiDevice(spiDev), maxSize(maxSize), spiMode(spiMode),
spiSpeed(spiSpeed) {
}
SpiCookie::SpiCookie(address_t spiAddress, std::string spiDev, const size_t maxSize,
spi::SpiMode spiMode, uint32_t spiSpeed):
SpiCookie(spiAddress, gpio::NO_GPIO, spiDev, maxSize, spiMode, spiSpeed) {
}
void SpiCookie::getSpiParameters(spi::SpiMode& 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);
}
}
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;
}