| /* |
| * Copyright (c) 2011-2014, Intel Corporation |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without modification, |
| * are permitted provided that the following conditions are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright notice, this |
| * list of conditions and the following disclaimer. |
| * |
| * 2. Redistributions in binary form must reproduce the above copyright notice, |
| * this list of conditions and the following disclaimer in the documentation and/or |
| * other materials provided with the distribution. |
| * |
| * 3. Neither the name of the copyright holder nor the names of its contributors |
| * may be used to endorse or promote products derived from this software without |
| * specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND |
| * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
| * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR |
| * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
| * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON |
| * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| #include "BitParameter.h" |
| #include "BitParameterType.h" |
| #include "ParameterAccessContext.h" |
| #include "ConfigurationAccessContext.h" |
| #include "ParameterBlackboard.h" |
| #include "BitParameterBlock.h" |
| #include "BitwiseAreaConfiguration.h" |
| |
| #define base CBaseParameter |
| |
| using std::string; |
| |
| CBitParameter::CBitParameter(const string& strName, const CTypeElement* pTypeElement) : base(strName, pTypeElement) |
| { |
| } |
| |
| // Type |
| CInstanceConfigurableElement::Type CBitParameter::getType() const |
| { |
| return EBitParameter; |
| } |
| |
| // Size |
| uint32_t CBitParameter::getBelongingBlockSize() const |
| { |
| return static_cast<const CBitParameterBlock*>(getParent())->getSize(); |
| } |
| |
| // Instantiation, allocation |
| uint32_t CBitParameter::getFootPrint() const |
| { |
| // Allocation done at parent level |
| return 0; |
| } |
| |
| // Actual parameter access (tuning) |
| bool CBitParameter::doSetValue(const string& strValue, uint32_t uiOffset, CParameterAccessContext& parameterAccessContext) const |
| { |
| return doSet(strValue, uiOffset, parameterAccessContext); |
| } |
| |
| void CBitParameter::doGetValue(string& strValue, uint32_t uiOffset, CParameterAccessContext& parameterAccessContext) const |
| { |
| doGet(strValue, uiOffset, parameterAccessContext); |
| } |
| |
| /// Value access |
| // Boolean access |
| bool CBitParameter::accessAsBoolean(bool& bValue, bool bSet, CParameterAccessContext& parameterAccessContext) const |
| { |
| // Check boolean access validity here |
| if (static_cast<const CBitParameterType*>(getTypeElement())->getBitSize() != 1) { |
| |
| parameterAccessContext.setError("Type mismatch"); |
| appendParameterPathToError(parameterAccessContext); |
| |
| return false; |
| } |
| |
| // Rely on integer access |
| uint32_t uiValue; |
| |
| if (bSet) { |
| |
| uiValue = bValue; |
| } |
| |
| if (!accessAsInteger(uiValue, bSet, parameterAccessContext)) { |
| |
| return false; |
| } |
| |
| if (!bSet) { |
| |
| bValue = uiValue != 0; |
| } |
| |
| return true; |
| } |
| |
| // Integer Access |
| bool CBitParameter::accessAsInteger(uint32_t& uiValue, bool bSet, CParameterAccessContext& parameterAccessContext) const |
| { |
| uint32_t uiOffset = getOffset(); |
| |
| if (bSet) { |
| |
| // Set Value |
| if (!doSet(uiValue, uiOffset, parameterAccessContext)) { |
| |
| appendParameterPathToError(parameterAccessContext); |
| return false; |
| } |
| // Synchronize |
| if (!sync(parameterAccessContext)) { |
| |
| appendParameterPathToError(parameterAccessContext); |
| return false; |
| } |
| } else { |
| |
| // Convert |
| doGet(uiValue, uiOffset, parameterAccessContext); |
| } |
| return true; |
| } |
| |
| template <typename type> |
| bool CBitParameter::doSet(type value, uint32_t uiOffset, CParameterAccessContext& parameterAccessContext) const |
| { |
| uint64_t uiData = 0; |
| |
| // Read/modify/write |
| CParameterBlackboard* pBlackboard = parameterAccessContext.getParameterBlackboard(); |
| |
| // Beware this code works on little endian architectures only! |
| pBlackboard->readInteger(&uiData, getBelongingBlockSize(), uiOffset, parameterAccessContext.isBigEndianSubsystem()); |
| |
| // Convert |
| if (!static_cast<const CBitParameterType*>(getTypeElement())->toBlackboard(value, uiData, parameterAccessContext)) { |
| |
| return false; |
| } |
| // Write blackboard |
| pBlackboard->writeInteger(&uiData, getBelongingBlockSize(), uiOffset, parameterAccessContext.isBigEndianSubsystem()); |
| |
| return true; |
| } |
| |
| template <typename type> |
| void CBitParameter::doGet(type& value, uint32_t uiOffset, CParameterAccessContext& parameterAccessContext) const |
| { |
| uint64_t uiData = 0; |
| |
| // Read blackboard |
| const CParameterBlackboard* pBlackboard = parameterAccessContext.getParameterBlackboard(); |
| |
| // Beware this code works on little endian architectures only! |
| pBlackboard->readInteger(&uiData, getBelongingBlockSize(), uiOffset, parameterAccessContext.isBigEndianSubsystem()); |
| |
| // Convert |
| static_cast<const CBitParameterType*>(getTypeElement())->fromBlackboard(value, uiData, parameterAccessContext); |
| } |
| |
| // AreaConfiguration creation |
| CAreaConfiguration* CBitParameter::createAreaConfiguration(const CSyncerSet* pSyncerSet) const |
| { |
| return new CBitwiseAreaConfiguration(this, pSyncerSet); |
| } |
| |
| // Access from area configuration |
| uint64_t CBitParameter::merge(uint64_t uiOriginData, uint64_t uiNewData) const |
| { |
| // Convert |
| return static_cast<const CBitParameterType*>(getTypeElement())->merge(uiOriginData, uiNewData); |
| } |