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 "BitwiseAreaConfiguration.h"
31 #include "BitParameter.h"
32 #include "Subsystem.h"
33
34 #define base CAreaConfiguration
35
CBitwiseAreaConfiguration(const CConfigurableElement * pConfigurableElement,const CSyncerSet * pSyncerSet)36 CBitwiseAreaConfiguration::CBitwiseAreaConfiguration(const CConfigurableElement *pConfigurableElement, const CSyncerSet *pSyncerSet)
37 : base(pConfigurableElement, pSyncerSet, static_cast<const CBitParameter*>(pConfigurableElement)->getBelongingBlockSize()),
38 _bBigEndian(pConfigurableElement->getBelongingSubsystem()->isBigEndian())
39 {
40 }
41
42 // Blackboard copies
copyTo(CParameterBlackboard * pToBlackboard,uint32_t uiOffset) const43 void CBitwiseAreaConfiguration::copyTo(CParameterBlackboard* pToBlackboard, uint32_t uiOffset) const
44 {
45 // Beware this code works on little endian architectures only!
46 const CBitParameter* pBitParameter = static_cast<const CBitParameter*>(_pConfigurableElement);
47
48 uint64_t uiSrcData = 0;
49 uint64_t uiDstData = 0;
50
51 /// Read/modify/write
52
53 // Read dst blackboard
54 pToBlackboard->readInteger(&uiDstData, pBitParameter->getBelongingBlockSize(), uiOffset, _bBigEndian);
55
56 // Read src blackboard
57 _blackboard.readInteger(&uiSrcData, pBitParameter->getBelongingBlockSize(), 0, _bBigEndian);
58
59 // Convert
60 uiDstData = pBitParameter->merge(uiDstData, uiSrcData);
61
62 // Write dst blackboard
63 pToBlackboard->writeInteger(&uiDstData, pBitParameter->getBelongingBlockSize(), uiOffset, _bBigEndian);
64 }
65
copyFrom(const CParameterBlackboard * pFromBlackboard,uint32_t uiOffset)66 void CBitwiseAreaConfiguration::copyFrom(const CParameterBlackboard* pFromBlackboard, uint32_t uiOffset)
67 {
68 // Beware this code works on little endian architectures only!
69 const CBitParameter* pBitParameter = static_cast<const CBitParameter*>(_pConfigurableElement);
70
71 uint64_t uiSrcData = 0;
72 uint64_t uiDstData = 0;
73
74 /// Read/modify/write
75
76 // Read dst blackboard
77 _blackboard.readInteger(&uiDstData, pBitParameter->getBelongingBlockSize(), 0, _bBigEndian);
78
79 // Read src blackboard
80 pFromBlackboard->readInteger(&uiSrcData, pBitParameter->getBelongingBlockSize(), uiOffset, _bBigEndian);
81
82 // Convert
83 uiDstData = pBitParameter->merge(uiDstData, uiSrcData);
84
85 // Write dst blackboard
86 _blackboard.writeInteger(&uiDstData, pBitParameter->getBelongingBlockSize(), 0, _bBigEndian);
87 }
88
89