99 lines
3.1 KiB
C++
99 lines
3.1 KiB
C++
#include <fsfw_hal/linux/uio/UioMapper.h>
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#include <linux/obc/PapbVcInterface.h>
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#include "fsfw/serviceinterface/ServiceInterface.h"
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PapbVcInterface::PapbVcInterface(LinuxLibgpioIF* gpioComIF, gpioId_t papbBusyId,
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gpioId_t papbEmptyId, std::string uioFile, int mapNum)
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: gpioComIF(gpioComIF),
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papbBusyId(papbBusyId),
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papbEmptyId(papbEmptyId),
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uioFile(uioFile),
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mapNum(mapNum) {}
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PapbVcInterface::~PapbVcInterface() {}
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ReturnValue_t PapbVcInterface::initialize() {
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UioMapper uioMapper(uioFile, mapNum);
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return uioMapper.getMappedAdress(&vcBaseReg, UioMapper::Permissions::WRITE_ONLY);
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}
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ReturnValue_t PapbVcInterface::write(const uint8_t* data, size_t size) {
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if (pollPapbBusySignal() == returnvalue::OK) {
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startPacketTransfer();
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}
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for (size_t idx = 0; idx < size; idx++) {
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if (pollPapbBusySignal() == returnvalue::OK) {
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*(vcBaseReg + DATA_REG_OFFSET) = static_cast<uint32_t>(*(data + idx));
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} else {
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sif::warning << "PapbVcInterface::write: Only written " << idx << " of " << size << " data"
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<< std::endl;
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return returnvalue::FAILED;
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}
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}
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if (pollPapbBusySignal() == returnvalue::OK) {
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endPacketTransfer();
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}
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return returnvalue::OK;
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}
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void PapbVcInterface::startPacketTransfer() { *vcBaseReg = CONFIG_START; }
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void PapbVcInterface::endPacketTransfer() { *vcBaseReg = CONFIG_END; }
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ReturnValue_t PapbVcInterface::pollPapbBusySignal() {
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gpio::Levels papbBusyState = gpio::Levels::LOW;
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ReturnValue_t result = returnvalue::OK;
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/** Check if PAPB interface is ready to receive data */
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result = gpioComIF->readGpio(papbBusyId, papbBusyState);
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if (result != returnvalue::OK) {
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sif::warning << "PapbVcInterface::pollPapbBusySignal: Failed to read papb busy signal"
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<< std::endl;
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return returnvalue::FAILED;
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}
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if (papbBusyState == gpio::Levels::LOW) {
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sif::warning << "PapbVcInterface::pollPapbBusySignal: PAPB busy" << std::endl;
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return PAPB_BUSY;
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}
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return returnvalue::OK;
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}
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void PapbVcInterface::isVcInterfaceBufferEmpty() {
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ReturnValue_t result = returnvalue::OK;
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gpio::Levels papbEmptyState = gpio::Levels::HIGH;
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result = gpioComIF->readGpio(papbEmptyId, papbEmptyState);
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if (result != returnvalue::OK) {
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sif::warning << "PapbVcInterface::isVcInterfaceBufferEmpty: Failed to read papb empty signal"
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<< std::endl;
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return;
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}
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if (papbEmptyState == gpio::Levels::HIGH) {
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sif::debug << "PapbVcInterface::isVcInterfaceBufferEmpty: Buffer is empty" << std::endl;
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} else {
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sif::debug << "PapbVcInterface::isVcInterfaceBufferEmpty: Buffer is not empty" << std::endl;
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}
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return;
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}
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ReturnValue_t PapbVcInterface::sendTestFrame() {
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/** Size of one complete transfer frame data field amounts to 1105 bytes */
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uint8_t testPacket[1105];
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/** Fill one test packet */
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for (int idx = 0; idx < 1105; idx++) {
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testPacket[idx] = static_cast<uint8_t>(idx & 0xFF);
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}
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ReturnValue_t result = write(testPacket, 1105);
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if (result != returnvalue::OK) {
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return result;
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}
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return returnvalue::OK;
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}
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