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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";
}
// Element properties
void CBitParameterType::showProperties(string& strResult) const
{
base::showProperties(strResult);
// Bit Pos
strResult += "Bit pos: ";
strResult += toString(_uiBitPos);
strResult += "\n";
// Bit size
strResult += "Bit size: ";
strResult += toString(_uiBitSize);
strResult += "\n";
}
// 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
{
// Hexa
bool bValueProvidedAsHexa = !strValue.compare(0, 2, "0x");
// Get value
uint32_t uiConvertedValue = strtoul(strValue.c_str(), NULL, 0);
if (uiConvertedValue > getMaxValue()) {
// Range exceeded
ostringstream strStream;
strStream << "Value " << strValue << " standing out of admitted range [";
if (bValueProvidedAsHexa) {
strStream << "0x0, " << "0x" << hex << uppercase;
} else {
strStream << "0, ";
}
strStream << getMaxValue() << "] for " + getKind();
parameterAccessContext.setError(strStream.str());
return false;
}
// Do bitwise RMW operation
uiValue = (uiValue & ~getMask()) | (uiConvertedValue << _uiBitPos);
return true;
}
void CBitParameterType::asString(const uint32_t& uiValue, string& strValue, CParameterAccessContext& parameterAccessContext) const
{
uint32_t uiConvertedValue = (uiValue & getMask()) >> _uiBitPos;
// Format
ostringstream strStream;
// Take care of format
if (parameterAccessContext.valueSpaceIsRaw() && parameterAccessContext.outputRawFormatIsHex()) {
strStream << "0x" << hex << uppercase;
}
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;
}
// Check data has no bit set outside available range
bool CBitParameterType::isEncodable(uint32_t uiData) const
{
uint32_t uiShift = 32 - _uiBitSize;
if (uiShift) {
// Check high bits are clean
return !(uiData >> uiShift);
}
return true;
}
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