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 "BitParameter.h" 31 #include "BitParameterType.h" 32 #include "ParameterAccessContext.h" 33 #include "ConfigurationAccessContext.h" 34 #include "ParameterBlackboard.h" 35 #include "BitParameterBlock.h" 36 #include "BitwiseAreaConfiguration.h" 37 38 #define base CBaseParameter 39 40 using std::string; 41 42 CBitParameter::CBitParameter(const string& strName, const CTypeElement* pTypeElement) : base(strName, pTypeElement) 43 { 44 } 45 46 // Type 47 CInstanceConfigurableElement::Type CBitParameter::getType() const 48 { 49 return EBitParameter; 50 } 51 52 // Size 53 uint32_t CBitParameter::getBelongingBlockSize() const 54 { 55 return static_cast<const CBitParameterBlock*>(getParent())->getSize(); 56 } 57 58 // Instantiation, allocation 59 uint32_t CBitParameter::getFootPrint() const 60 { 61 // Allocation done at parent level 62 return 0; 63 } 64 65 // Actual parameter access (tuning) 66 bool CBitParameter::doSetValue(const string& strValue, uint32_t uiOffset, CParameterAccessContext& parameterAccessContext) const 67 { 68 return doSet(strValue, uiOffset, parameterAccessContext); 69 } 70 71 void CBitParameter::doGetValue(string& strValue, uint32_t uiOffset, CParameterAccessContext& parameterAccessContext) const 72 { 73 doGet(strValue, uiOffset, parameterAccessContext); 74 } 75 76 /// Value access 77 // Boolean access 78 bool CBitParameter::accessAsBoolean(bool& bValue, bool bSet, CParameterAccessContext& parameterAccessContext) const 79 { 80 // Check boolean access validity here 81 if (static_cast<const CBitParameterType*>(getTypeElement())->getBitSize() != 1) { 82 83 parameterAccessContext.setError("Type mismatch"); 84 appendParameterPathToError(parameterAccessContext); 85 86 return false; 87 } 88 89 // Rely on integer access 90 uint32_t uiValue; 91 92 if (bSet) { 93 94 uiValue = bValue; 95 } 96 97 if (!accessAsInteger(uiValue, bSet, parameterAccessContext)) { 98 99 return false; 100 } 101 102 if (!bSet) { 103 104 bValue = uiValue != 0; 105 } 106 107 return true; 108 } 109 110 // Integer Access 111 bool CBitParameter::accessAsInteger(uint32_t& uiValue, bool bSet, CParameterAccessContext& parameterAccessContext) const 112 { 113 uint32_t uiOffset = getOffset(); 114 115 if (bSet) { 116 117 // Set Value 118 if (!doSet(uiValue, uiOffset, parameterAccessContext)) { 119 120 appendParameterPathToError(parameterAccessContext); 121 return false; 122 } 123 // Synchronize 124 if (!sync(parameterAccessContext)) { 125 126 appendParameterPathToError(parameterAccessContext); 127 return false; 128 } 129 } else { 130 131 // Convert 132 doGet(uiValue, uiOffset, parameterAccessContext); 133 } 134 return true; 135 } 136 137 template <typename type> 138 bool CBitParameter::doSet(type value, uint32_t uiOffset, CParameterAccessContext& parameterAccessContext) const 139 { 140 uint64_t uiData = 0; 141 142 // Read/modify/write 143 CParameterBlackboard* pBlackboard = parameterAccessContext.getParameterBlackboard(); 144 145 // Beware this code works on little endian architectures only! 146 pBlackboard->readInteger(&uiData, getBelongingBlockSize(), uiOffset, parameterAccessContext.isBigEndianSubsystem()); 147 148 // Convert 149 if (!static_cast<const CBitParameterType*>(getTypeElement())->toBlackboard(value, uiData, parameterAccessContext)) { 150 151 return false; 152 } 153 // Write blackboard 154 pBlackboard->writeInteger(&uiData, getBelongingBlockSize(), uiOffset, parameterAccessContext.isBigEndianSubsystem()); 155 156 return true; 157 } 158 159 template <typename type> 160 void CBitParameter::doGet(type& value, uint32_t uiOffset, CParameterAccessContext& parameterAccessContext) const 161 { 162 uint64_t uiData = 0; 163 164 // Read blackboard 165 const CParameterBlackboard* pBlackboard = parameterAccessContext.getParameterBlackboard(); 166 167 // Beware this code works on little endian architectures only! 168 pBlackboard->readInteger(&uiData, getBelongingBlockSize(), uiOffset, parameterAccessContext.isBigEndianSubsystem()); 169 170 // Convert 171 static_cast<const CBitParameterType*>(getTypeElement())->fromBlackboard(value, uiData, parameterAccessContext); 172 } 173 174 // AreaConfiguration creation 175 CAreaConfiguration* CBitParameter::createAreaConfiguration(const CSyncerSet* pSyncerSet) const 176 { 177 return new CBitwiseAreaConfiguration(this, pSyncerSet); 178 } 179 180 // Access from area configuration 181 uint64_t CBitParameter::merge(uint64_t uiOriginData, uint64_t uiNewData) const 182 { 183 // Convert 184 return static_cast<const CBitParameterType*>(getTypeElement())->merge(uiOriginData, uiNewData); 185 } 186
