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Diffstat (limited to 'parameter/BitParameterType.cpp')
-rw-r--r-- | parameter/BitParameterType.cpp | 136 |
1 files changed, 136 insertions, 0 deletions
diff --git a/parameter/BitParameterType.cpp b/parameter/BitParameterType.cpp new file mode 100644 index 0000000..e12cd60 --- /dev/null +++ b/parameter/BitParameterType.cpp @@ -0,0 +1,136 @@ +/* <auto_header> + * <FILENAME> + * + * INTEL CONFIDENTIAL + * Copyright © 2011 Intel + * Corporation All Rights Reserved. + * + * The source code contained or described herein and all documents related to + * the source code ("Material") are owned by Intel Corporation or its suppliers + * or licensors. Title to the Material remains with Intel Corporation or its + * suppliers and licensors. The Material contains trade secrets and proprietary + * and confidential information of Intel or its suppliers and licensors. The + * Material is protected by worldwide copyright and trade secret laws and + * treaty provisions. No part of the Material may be used, copied, reproduced, + * modified, published, uploaded, posted, transmitted, distributed, or + * disclosed in any way without Intel’s prior express written permission. + * + * No license under any patent, copyright, trade secret or other intellectual + * property right is granted to or conferred upon you by disclosure or delivery + * of the Materials, either expressly, by implication, inducement, estoppel or + * otherwise. Any license under such intellectual property rights must be + * express and approved by Intel in writing. + * + * AUTHOR: Patrick Benavoli (patrickx.benavoli@intel.com) + * CREATED: 2011-06-01 + * UPDATED: 2011-07-27 + * + * + * </auto_header> + */ +#include "BitParameterType.h" +#include "BitParameter.h" +#include <stdlib.h> +#include <sstream> +#include "ParameterAccessContext.h" +#include "BitParameterBlockType.h" + +#define base CTypeElement + +CBitParameterType::CBitParameterType(const string& strName) : base(strName), _uiBitPos(0), _uiBitSize(0) +{ +} + +// CElement +string CBitParameterType::getKind() const +{ + return "BitParameter"; +} + +// From IXmlSink +bool CBitParameterType::fromXml(const CXmlElement& xmlElement, CXmlSerializingContext& serializingContext) +{ + // Pos + _uiBitPos = xmlElement.getAttributeInteger("Pos"); + + // Size + _uiBitSize = xmlElement.getAttributeInteger("Size"); + + // TODO: Validate bit pos and size still fit into parent type + const CBitParameterBlockType* pBitParameterBlockType = static_cast<const CBitParameterBlockType*>(getParent()); + + uint32_t uiParentBlockBitSize = pBitParameterBlockType->getSize() << 3; + + if (_uiBitPos + _uiBitSize > uiParentBlockBitSize) { + + // Range exceeded + ostringstream strStream; + + strStream << "Pos and Size attributes inconsistent with maximum container element size (" << uiParentBlockBitSize << " bits) for " + getKind(); + + serializingContext.setError(strStream.str()); + + return false; + } + + // Base + return base::fromXml(xmlElement, serializingContext); +} + +// Conversion +bool CBitParameterType::asInteger(const string& strValue, uint32_t& uiValue, CParameterAccessContext& parameterAccessContext) const +{ + uint32_t uiConvertedValue = strtoul(strValue.c_str(), NULL, 0); + + if (uiConvertedValue > getMaxValue()) { + + // Range exceeded + ostringstream strStream; + + strStream << strValue << " value out of range [0, " << getMaxValue() << "] for " + getKind(); + + parameterAccessContext.setError(strStream.str()); + + return false; + } + + // Do bitwise operation + uiValue = (uiValue & ~getMask()) | (uiConvertedValue << _uiBitPos); + + return true; +} + +void CBitParameterType::asString(const uint32_t& uiValue, string& strValue) const +{ + uint32_t uiConvertedValue = (uiValue & getMask()) >> _uiBitPos; + + // Format + ostringstream strStream; + + strStream << uiConvertedValue; + + strValue = strStream.str(); +} + +// Bit Size +uint32_t CBitParameterType::getBitSize() const +{ + return _uiBitSize; +} + +CInstanceConfigurableElement* CBitParameterType::doInstantiate() const +{ + return new CBitParameter(getName(), this); +} + +// Max value +uint32_t CBitParameterType::getMaxValue() const +{ + return (1 << _uiBitSize) - 1; +} + +// Biwise mask +uint32_t CBitParameterType::getMask() const +{ + return getMaxValue() << _uiBitPos; +} |