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-rw-r--r--parameter/BitParameterType.cpp136
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+/* <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;
+}