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:
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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
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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 
CBitParameterBlock(const string & strName,const CTypeElement * pTypeElement)39 CBitParameterBlock::CBitParameterBlock(const string &strName, const CTypeElement *pTypeElement)
40     : base(strName, pTypeElement)
41 {
42 }
43 
getType() const44 CInstanceConfigurableElement::Type CBitParameterBlock::getType() const
45 {
46     return EBitParameterBlock;
47 }
48 
49 // Instantiation, allocation
getFootPrint() const50 size_t CBitParameterBlock::getFootPrint() const
51 {
52     return getSize();
53 }
54 
55 // Size
getSize() const56 size_t CBitParameterBlock::getSize() const
57 {
58     return static_cast<const CBitParameterBlockType *>(getTypeElement())->getSize();
59 }
60 
61 // Used for simulation and virtual subsystems
setDefaultValues(CParameterAccessContext & parameterAccessContext) const62 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