1*b6aadd18SAndrew Turner /*
2*b6aadd18SAndrew Turner * \file trc_raw_buffer.h
3*b6aadd18SAndrew Turner * \brief OpenCSD : Trace raw data byte buffer
4*b6aadd18SAndrew Turner *
5*b6aadd18SAndrew Turner * \copyright Copyright (c) 2019, ARM Limited. All Rights Reserved.
6*b6aadd18SAndrew Turner */
7*b6aadd18SAndrew Turner
8*b6aadd18SAndrew Turner /*
9*b6aadd18SAndrew Turner * Redistribution and use in source and binary forms, with or without modification,
10*b6aadd18SAndrew Turner * are permitted provided that the following conditions are met:
11*b6aadd18SAndrew Turner *
12*b6aadd18SAndrew Turner * 1. Redistributions of source code must retain the above copyright notice,
13*b6aadd18SAndrew Turner * this list of conditions and the following disclaimer.
14*b6aadd18SAndrew Turner *
15*b6aadd18SAndrew Turner * 2. Redistributions in binary form must reproduce the above copyright notice,
16*b6aadd18SAndrew Turner * this list of conditions and the following disclaimer in the documentation
17*b6aadd18SAndrew Turner * and/or other materials provided with the distribution.
18*b6aadd18SAndrew Turner *
19*b6aadd18SAndrew Turner * 3. Neither the name of the copyright holder nor the names of its contributors
20*b6aadd18SAndrew Turner * may be used to endorse or promote products derived from this software without
21*b6aadd18SAndrew Turner * specific prior written permission.
22*b6aadd18SAndrew Turner *
23*b6aadd18SAndrew Turner * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 'AS IS' AND
24*b6aadd18SAndrew Turner * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
25*b6aadd18SAndrew Turner * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
26*b6aadd18SAndrew Turner * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
27*b6aadd18SAndrew Turner * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
28*b6aadd18SAndrew Turner * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
29*b6aadd18SAndrew Turner * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
30*b6aadd18SAndrew Turner * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
31*b6aadd18SAndrew Turner * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
32*b6aadd18SAndrew Turner * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
33*b6aadd18SAndrew Turner */
34*b6aadd18SAndrew Turner
35*b6aadd18SAndrew Turner #ifndef ARM_TRC_RAW_BUFFER_H_INCLUDED
36*b6aadd18SAndrew Turner #define ARM_TRC_RAW_BUFFER_H_INCLUDED
37*b6aadd18SAndrew Turner
38*b6aadd18SAndrew Turner #include <vector>
39*b6aadd18SAndrew Turner
40*b6aadd18SAndrew Turner class TraceRawBuffer
41*b6aadd18SAndrew Turner {
42*b6aadd18SAndrew Turner public:
TraceRawBuffer()43*b6aadd18SAndrew Turner TraceRawBuffer() :
44*b6aadd18SAndrew Turner m_bufSize(0),
45*b6aadd18SAndrew Turner m_bufProcessed(0),
46*b6aadd18SAndrew Turner m_pBuffer(0),
47*b6aadd18SAndrew Turner pkt(0)
48*b6aadd18SAndrew Turner {};
~TraceRawBuffer()49*b6aadd18SAndrew Turner ~TraceRawBuffer() {};
50*b6aadd18SAndrew Turner
51*b6aadd18SAndrew Turner // init the buffer
52*b6aadd18SAndrew Turner void init(const uint32_t size, const uint8_t *rawtrace, std::vector<uint8_t> *out_packet);
53*b6aadd18SAndrew Turner void copyByteToPkt(); // move a byte to the packet buffer
54*b6aadd18SAndrew Turner uint8_t peekNextByte(); // value of next byte in buffer.
55*b6aadd18SAndrew Turner
empty()56*b6aadd18SAndrew Turner bool empty() { return m_bufProcessed == m_bufSize; };
57*b6aadd18SAndrew Turner // bytes processed.
processed()58*b6aadd18SAndrew Turner uint32_t processed() { return m_bufProcessed; };
59*b6aadd18SAndrew Turner // buffer size;
size()60*b6aadd18SAndrew Turner uint32_t size() { return m_bufSize; }
61*b6aadd18SAndrew Turner
62*b6aadd18SAndrew Turner private:
63*b6aadd18SAndrew Turner uint32_t m_bufSize;
64*b6aadd18SAndrew Turner uint32_t m_bufProcessed;
65*b6aadd18SAndrew Turner const uint8_t *m_pBuffer;
66*b6aadd18SAndrew Turner std::vector<uint8_t> *pkt;
67*b6aadd18SAndrew Turner
68*b6aadd18SAndrew Turner };
69*b6aadd18SAndrew Turner
70*b6aadd18SAndrew Turner // init the buffer
init(const uint32_t size,const uint8_t * rawtrace,std::vector<uint8_t> * out_packet)71*b6aadd18SAndrew Turner inline void TraceRawBuffer::init(const uint32_t size, const uint8_t *rawtrace, std::vector<uint8_t> *out_packet)
72*b6aadd18SAndrew Turner {
73*b6aadd18SAndrew Turner m_bufSize = size;
74*b6aadd18SAndrew Turner m_bufProcessed = 0;
75*b6aadd18SAndrew Turner m_pBuffer = rawtrace;
76*b6aadd18SAndrew Turner pkt = out_packet;
77*b6aadd18SAndrew Turner }
78*b6aadd18SAndrew Turner
copyByteToPkt()79*b6aadd18SAndrew Turner inline void TraceRawBuffer::copyByteToPkt()
80*b6aadd18SAndrew Turner {
81*b6aadd18SAndrew Turner if (!empty()) {
82*b6aadd18SAndrew Turner pkt->push_back(m_pBuffer[m_bufProcessed]);
83*b6aadd18SAndrew Turner m_bufProcessed++;
84*b6aadd18SAndrew Turner }
85*b6aadd18SAndrew Turner }
86*b6aadd18SAndrew Turner
peekNextByte()87*b6aadd18SAndrew Turner inline uint8_t TraceRawBuffer::peekNextByte()
88*b6aadd18SAndrew Turner {
89*b6aadd18SAndrew Turner uint8_t val = 0;
90*b6aadd18SAndrew Turner if (!empty())
91*b6aadd18SAndrew Turner val = m_pBuffer[m_bufProcessed];
92*b6aadd18SAndrew Turner return val;
93*b6aadd18SAndrew Turner }
94*b6aadd18SAndrew Turner
95*b6aadd18SAndrew Turner #endif // ARM_TRC_RAW_BUFFER_H_INCLUDED
96*b6aadd18SAndrew Turner
97