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      1 /*
      2  * Copyright (c) 2011-2014, Intel Corporation
      3  * All rights reserved.
      4  *
      5  * Redistribution and use in source and binary forms, with or without modification,
      6  * are permitted provided that the following conditions are met:
      7  *
      8  * 1. Redistributions of source code must retain the above copyright notice, this
      9  * list of conditions and the following disclaimer.
     10  *
     11  * 2. Redistributions in binary form must reproduce the above copyright notice,
     12  * this list of conditions and the following disclaimer in the documentation and/or
     13  * other materials provided with the distribution.
     14  *
     15  * 3. Neither the name of the copyright holder nor the names of its contributors
     16  * may be used to endorse or promote products derived from this software without
     17  * specific prior written permission.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
     20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     21  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
     22  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
     23  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     24  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     25  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
     26  * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
     28  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     29  */
     30 #include "BitParameterBlock.h"
     31 #include "BitParameterBlockType.h"
     32 #include "ParameterAccessContext.h"
     33 #include "ParameterBlackboard.h"
     34 
     35 #define base CInstanceConfigurableElement
     36 
     37 using std::string;
     38 
     39 CBitParameterBlock::CBitParameterBlock(const string &strName, const CTypeElement *pTypeElement)
     40     : base(strName, pTypeElement)
     41 {
     42 }
     43 
     44 CInstanceConfigurableElement::Type CBitParameterBlock::getType() const
     45 {
     46     return EBitParameterBlock;
     47 }
     48 
     49 // Instantiation, allocation
     50 size_t CBitParameterBlock::getFootPrint() const
     51 {
     52     return getSize();
     53 }
     54 
     55 // Size
     56 size_t CBitParameterBlock::getSize() const
     57 {
     58     return static_cast<const CBitParameterBlockType *>(getTypeElement())->getSize();
     59 }
     60 
     61 // Used for simulation and virtual subsystems
     62 void CBitParameterBlock::setDefaultValues(CParameterAccessContext &parameterAccessContext) const
     63 {
     64     // Default value is 0 as their is no min bound for bit parameters,
     65     // thus 0 is always a valid value.
     66     // BitParameterBlock can be as long a 64 bit, thus an 64 bit long variable
     67     // is necessary to initialize it.
     68     uint64_t uiDefaultValue = 0;
     69 
     70     // Write blackboard
     71     CParameterBlackboard *pBlackboard = parameterAccessContext.getParameterBlackboard();
     72 
     73     // Beware this code works on little endian architectures only!
     74     pBlackboard->writeInteger(&uiDefaultValue, getSize(),
     75                               getOffset() - parameterAccessContext.getBaseOffset());
     76 }
     77