EIVE upstream #29
@ -27,7 +27,7 @@ SpiComIF::SpiComIF(object_id_t objectId, std::string devname, GpioIF* gpioComIF)
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#endif /* FSFW_VERBOSE_LEVEL >= 1 */
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}
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spiMutex = MutexFactory::instance()->createMutex();
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csMutex = MutexFactory::instance()->createMutex();
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}
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ReturnValue_t SpiComIF::initializeInterface(CookieIF* cookie) {
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@ -197,7 +197,7 @@ ReturnValue_t SpiComIF::performRegularSendOperation(SpiCookie* spiCookie, const
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/* Pull SPI CS low. For now, no support for active high given */
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if (gpioId != gpio::NO_GPIO) {
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result = spiMutex->lockMutex(timeoutType, timeoutMs);
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result = csMutex->lockMutex(timeoutType, timeoutMs);
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if (result != RETURN_OK) {
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#if FSFW_VERBOSE_LEVEL >= 1
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#if FSFW_CPP_OSTREAM_ENABLED == 1
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@ -208,6 +208,7 @@ ReturnValue_t SpiComIF::performRegularSendOperation(SpiCookie* spiCookie, const
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#endif
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return result;
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}
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updateLinePolarity(fileDescriptor);
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ReturnValue_t result = gpioComIF->pullLow(gpioId);
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if (result != HasReturnvaluesIF::RETURN_OK) {
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#if FSFW_VERBOSE_LEVEL >= 1
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@ -219,6 +220,8 @@ ReturnValue_t SpiComIF::performRegularSendOperation(SpiCookie* spiCookie, const
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#endif
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return result;
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}
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} else {
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updateLinePolarity(fileDescriptor);
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}
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/* Execute transfer */
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@ -248,7 +251,7 @@ ReturnValue_t SpiComIF::performRegularSendOperation(SpiCookie* spiCookie, const
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if (gpioId != gpio::NO_GPIO) {
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gpioComIF->pullHigh(gpioId);
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result = spiMutex->unlockMutex();
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result = csMutex->unlockMutex();
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if (result != RETURN_OK) {
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#if FSFW_CPP_OSTREAM_ENABLED == 1
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sif::error << "SpiComIF::sendMessage: Failed to unlock mutex" << std::endl;
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@ -291,7 +294,7 @@ ReturnValue_t SpiComIF::performHalfDuplexReception(SpiCookie* spiCookie) {
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gpioId_t gpioId = spiCookie->getChipSelectPin();
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if (gpioId != gpio::NO_GPIO) {
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result = spiMutex->lockMutex(timeoutType, timeoutMs);
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result = csMutex->lockMutex(timeoutType, timeoutMs);
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if (result != RETURN_OK) {
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#if FSFW_CPP_OSTREAM_ENABLED == 1
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sif::error << "SpiComIF::getSendSuccess: Failed to lock mutex" << std::endl;
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@ -314,7 +317,7 @@ ReturnValue_t SpiComIF::performHalfDuplexReception(SpiCookie* spiCookie) {
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if (gpioId != gpio::NO_GPIO) {
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gpioComIF->pullHigh(gpioId);
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result = spiMutex->unlockMutex();
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result = csMutex->unlockMutex();
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if (result != RETURN_OK) {
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#if FSFW_CPP_OSTREAM_ENABLED == 1
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sif::error << "SpiComIF::getSendSuccess: Failed to unlock mutex" << std::endl;
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@ -350,7 +353,7 @@ MutexIF* SpiComIF::getMutex(MutexIF::TimeoutType* timeoutType, uint32_t* timeout
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if (timeoutMs != nullptr) {
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*timeoutMs = this->timeoutMs;
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}
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return spiMutex;
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return csMutex;
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}
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void SpiComIF::performSpiWiretapping(SpiCookie* spiCookie) {
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@ -398,14 +401,6 @@ void SpiComIF::setSpiSpeedAndMode(int spiFd, spi::SpiModes mode, uint32_t speed)
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if (retval != 0) {
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utility::handleIoctlError("SpiComIF::setSpiSpeedAndMode: Setting SPI speed failed");
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}
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// This updates the SPI clock default polarity. Only setting the mode does not update
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// the line state, which can be an issue on mode switches because the clock line will
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// switch the state after the chip select is pulled low
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clockUpdateTransfer.len = 0;
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retval = ioctl(spiFd, SPI_IOC_MESSAGE(1), &clockUpdateTransfer);
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if (retval != 0) {
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utility::handleIoctlError("SpiComIF::setSpiSpeedAndMode: Updating SPI default clock failed");
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}
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}
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void SpiComIF::getSpiSpeedAndMode(int spiFd, spi::SpiModes& mode, uint32_t& speed) const {
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@ -422,4 +417,14 @@ void SpiComIF::getSpiSpeedAndMode(int spiFd, spi::SpiModes& mode, uint32_t& spee
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}
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}
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const std::string& SpiComIF::getSpiDev() const { return dev; }
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const std::string& SpiComIF::getSpiDev() const {
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return dev;
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}
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void SpiComIF::updateLinePolarity(int spiFd) {
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clockUpdateTransfer.len = 0;
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int retval = ioctl(spiFd, SPI_IOC_MESSAGE(1), &clockUpdateTransfer);
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if (retval != 0) {
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utility::handleIoctlError("SpiComIF::setSpiSpeedAndMode: Updating SPI default clock failed");
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}
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}
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@ -59,6 +59,17 @@ class SpiComIF : public DeviceCommunicationIF, public SystemObject {
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GpioIF* getGpioInterface();
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void setSpiSpeedAndMode(int spiFd, spi::SpiModes mode, uint32_t speed);
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/**
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* This updates the SPI clock default polarity. Only setting the mode does not update
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* the line state, which can be an issue on mode switches because the clock line will
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* switch the state after the chip select is pulled low.
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*
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* It is recommended to call this function after #setSpiSpeedAndMode if the SPI bus
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* has multiple SPI devices with different speed and SPI modes attached.
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* @param spiFd
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*/
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void updateLinePolarity(int spiFd);
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void getSpiSpeedAndMode(int spiFd, spi::SpiModes& mode, uint32_t& speed) const;
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const std::string& getSpiDev() const;
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@ -74,7 +85,11 @@ class SpiComIF : public DeviceCommunicationIF, public SystemObject {
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GpioIF* gpioComIF = nullptr;
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std::string dev = "";
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MutexIF* spiMutex = nullptr;
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/**
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* Protects the chip select operations. Lock when GPIO is pulled low, unlock after it was
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* pulled high
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*/
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MutexIF* csMutex = nullptr;
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MutexIF::TimeoutType timeoutType = MutexIF::TimeoutType::WAITING;
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uint32_t timeoutMs = 20;
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spi_ioc_transfer clockUpdateTransfer = {};
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Loading…
Reference in New Issue
Block a user