fsfw/src/opt/pus/Service20ParameterManagement.cpp

#include "Service20ParameterManagement.h"
#include "servicepackets/Service20Packets.h"

#include "../serviceinterface/ServiceInterface.h"
#include "../parameters/HasParametersIF.h"
#include "../parameters/ParameterMessage.h"
#include "../objectmanager/ObjectManager.h"
#include "../parameters/ReceivesParameterMessagesIF.h"


Service20ParameterManagement::Service20ParameterManagement(object_id_t objectId, uint16_t apid,
        uint8_t serviceId, uint8_t numberOfParallelCommands, uint16_t commandTimeoutSeconds) :
        CommandingServiceBase(objectId, apid, serviceId,
                numberOfParallelCommands,commandTimeoutSeconds) {}

Service20ParameterManagement::~Service20ParameterManagement() {}


ReturnValue_t Service20ParameterManagement::isValidSubservice(
        uint8_t subservice) {
    switch(static_cast<Subservice>(subservice)) {
    case Subservice::PARAMETER_LOAD:
    case Subservice::PARAMETER_DUMP:
        return HasReturnvaluesIF::RETURN_OK;
    default:
#if FSFW_CPP_OSTREAM_ENABLED == 1
        sif::error << "Invalid Subservice for Service 20" << std::endl;
#else
        sif::printError("Invalid Subservice for Service 20\n");
#endif
        return AcceptsTelecommandsIF::INVALID_SUBSERVICE;
    }
}


ReturnValue_t Service20ParameterManagement::getMessageQueueAndObject(
        uint8_t subservice, const uint8_t* tcData, size_t tcDataLen,
        MessageQueueId_t* id, object_id_t* objectId) {
    ReturnValue_t result = checkAndAcquireTargetID(objectId,tcData,tcDataLen);
    if(result != RETURN_OK) {
        return result;
    }
    return checkInterfaceAndAcquireMessageQueue(id,objectId);
}


ReturnValue_t Service20ParameterManagement::checkAndAcquireTargetID(
        object_id_t* objectIdToSet, const uint8_t* tcData, size_t tcDataLen) {
    if(SerializeAdapter::deSerialize(objectIdToSet, &tcData, &tcDataLen,
            SerializeIF::Endianness::BIG) != HasReturnvaluesIF::RETURN_OK) {
#if FSFW_CPP_OSTREAM_ENABLED == 1
        sif::error << "Service20ParameterManagement::checkAndAcquireTargetID: "
                << "Invalid data." << std::endl;
#else
        sif::printError("Service20ParameterManagement::"
                "checkAndAcquireTargetID: Invalid data.\n");
#endif
        return CommandingServiceBase::INVALID_TC;
    }
    return HasReturnvaluesIF::RETURN_OK;
}


ReturnValue_t Service20ParameterManagement::checkInterfaceAndAcquireMessageQueue(
        MessageQueueId_t* messageQueueToSet, object_id_t* objectId) {
    // check ReceivesParameterMessagesIF property of target
    ReceivesParameterMessagesIF* possibleTarget =
            ObjectManager::instance()->get<ReceivesParameterMessagesIF>(*objectId);
    if(possibleTarget == nullptr) {
#if FSFW_CPP_OSTREAM_ENABLED == 1
        sif::error << "Service20ParameterManagement::checkInterfaceAndAcquire"
                <<"MessageQueue: Can't access object" << std::endl;
        sif::error << "Object ID: " << std::hex << objectId << std::dec << std::endl;
        sif::error << "Make sure it implements ReceivesParameterMessagesIF!" << std::endl;
#else
        sif::printError("Service20ParameterManagement::checkInterfaceAndAcquire"
                "MessageQueue: Can't access object\n");
        sif::printError("Object ID: 0x%08x\n", *objectId);
        sif::printError("Make sure it implements ReceivesParameterMessagesIF!\n");
#endif

        return CommandingServiceBase::INVALID_OBJECT;
    }
    *messageQueueToSet = possibleTarget->getCommandQueue();
    return HasReturnvaluesIF::RETURN_OK;
}

ReturnValue_t Service20ParameterManagement::prepareCommand(
        CommandMessage* message, uint8_t subservice, const uint8_t* tcData,
        size_t tcDataLen, uint32_t* state, object_id_t objectId) {
    switch(static_cast<Subservice>(subservice)){
    case Subservice::PARAMETER_DUMP: {
        return prepareDumpCommand(message, tcData, tcDataLen);
    }
    break;
    case Subservice::PARAMETER_LOAD: {
        return prepareLoadCommand(message, tcData, tcDataLen);
    }
    break;
    default:
        return HasReturnvaluesIF::RETURN_FAILED;
    }
}

ReturnValue_t Service20ParameterManagement::prepareDumpCommand(
        CommandMessage* message, const uint8_t* tcData, size_t tcDataLen) {
    /* the first part is the objectId, but we have extracted that earlier
    and only need the parameterId */
    tcData += sizeof(object_id_t);
    tcDataLen -= sizeof(object_id_t);
    ParameterId_t parameterId;
    if(SerializeAdapter::deSerialize(&parameterId, &tcData, &tcDataLen,
            SerializeIF::Endianness::BIG) != HasReturnvaluesIF::RETURN_OK) {
        return CommandingServiceBase::INVALID_TC;
    }
    /* The length should have been decremented to 0 by this point */
    if(tcDataLen != 0) {
        return CommandingServiceBase::INVALID_TC;
    }

    ParameterMessage::setParameterDumpCommand(message, parameterId);
    return HasReturnvaluesIF::RETURN_OK;
}

ReturnValue_t Service20ParameterManagement::prepareLoadCommand(
        CommandMessage* message, const uint8_t* tcData, size_t tcDataLen) {
    if(tcDataLen < sizeof(object_id_t) + sizeof(ParameterId_t) +
            sizeof(uint32_t)) {
        return CommandingServiceBase::INVALID_TC;
    }

    uint8_t* storePointer = nullptr;
    store_address_t storeAddress;
    size_t parameterDataLen = tcDataLen - sizeof(object_id_t) - sizeof(ParameterId_t) -
            sizeof(uint32_t);
    if(parameterDataLen == 0) {
        return CommandingServiceBase::INVALID_TC;
    }
    ReturnValue_t result = IPCStore->getFreeElement(&storeAddress,
            parameterDataLen, &storePointer);
    if(result != HasReturnvaluesIF::RETURN_OK) {
        return result;
    }

    /* Following format is expected: The first 4 bytes in the TC data are the 4 byte
    parameter ID (ParameterId_t). The second 4 bytes are the parameter information field,
    containing the following 1 byte fields:
     1. ECSS PTC field
     2. ECSS PFC field
     3. Number of rows
     4. Number of columns */
    ParameterLoadCommand command(storePointer, parameterDataLen);
    result = command.deSerialize(&tcData, &tcDataLen,
            SerializeIF::Endianness::BIG);
    if(result != HasReturnvaluesIF::RETURN_OK) {
        return result;
    }

    ParameterMessage::setParameterLoadCommand(message, command.getParameterId(), storeAddress,
            command.getPtc(), command.getPfc(), command.getRows(), command.getColumns());
    return HasReturnvaluesIF::RETURN_OK;
}

ReturnValue_t Service20ParameterManagement::handleReply(
        const CommandMessage* reply, Command_t previousCommand, uint32_t* state,
        CommandMessage* optionalNextCommand, object_id_t objectId,
        bool* isStep) {
    Command_t replyId = reply->getCommand();

    switch(replyId) {
    case ParameterMessage::REPLY_PARAMETER_DUMP: {
        ConstAccessorPair parameterData = IPCStore->getData(
                ParameterMessage::getStoreId(reply));
        if(parameterData.first != HasReturnvaluesIF::RETURN_OK) {
            return HasReturnvaluesIF::RETURN_FAILED;
        }

        ParameterId_t parameterId = ParameterMessage::getParameterId(reply);
        ParameterDumpReply parameterReply(objectId, parameterId,
                parameterData.second.data(), parameterData.second.size());
        sendTmPacket(static_cast<uint8_t>(
                Subservice::PARAMETER_DUMP_REPLY), &parameterReply);
        return HasReturnvaluesIF::RETURN_OK;
    }
    default:
        return CommandingServiceBase::INVALID_REPLY;
    }
}