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