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/*
Copyright (C) 2010, 2013-2014 Srivats P.
This file is part of "Ostinato"
This is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>
*/
#include "payload.h"
#include "streambase.h"
PayloadProtocol::PayloadProtocol(StreamBase *stream, AbstractProtocol *parent)
: AbstractProtocol(stream, parent)
{
}
PayloadProtocol::~PayloadProtocol()
{
}
AbstractProtocol* PayloadProtocol::createInstance(StreamBase *stream,
AbstractProtocol *parent)
{
return new PayloadProtocol(stream, parent);
}
quint32 PayloadProtocol::protocolNumber() const
{
return OstProto::Protocol::kPayloadFieldNumber;
}
void PayloadProtocol::protoDataCopyInto(OstProto::Protocol &protocol) const
{
protocol.MutableExtension(OstProto::payload)->CopyFrom(data);
protocol.mutable_protocol_id()->set_id(protocolNumber());
}
void PayloadProtocol::protoDataCopyFrom(const OstProto::Protocol &protocol)
{
if (protocol.protocol_id().id() == protocolNumber() &&
protocol.HasExtension(OstProto::payload))
data.MergeFrom(protocol.GetExtension(OstProto::payload));
}
QString PayloadProtocol::name() const
{
return QString("Payload Data");
}
QString PayloadProtocol::shortName() const
{
return QString("DATA");
}
int PayloadProtocol::protocolFrameSize(int streamIndex) const
{
int len;
len = mpStream->frameLen(streamIndex) - protocolFrameOffset(streamIndex)
- protocolFramePayloadSize(streamIndex) - kFcsSize;
if (len < 0)
len = 0;
qDebug("%s: this = %p, streamIndex = %d, len = %d", __FUNCTION__, this,
streamIndex, len);
return len;
}
int PayloadProtocol::fieldCount() const
{
return payload_fieldCount;
}
AbstractProtocol::FieldFlags PayloadProtocol::fieldFlags(int index) const
{
AbstractProtocol::FieldFlags flags;
flags = AbstractProtocol::fieldFlags(index);
switch (index)
{
case payload_dataPattern:
break;
// Meta fields
case payload_dataPatternMode:
flags &= ~FrameField;
flags |= MetaField;
break;
}
return flags;
}
QVariant PayloadProtocol::fieldData(int index, FieldAttrib attrib,
int streamIndex) const
{
switch (index)
{
case payload_dataPattern:
switch(attrib)
{
case FieldName:
return QString("Data");
case FieldValue:
return data.pattern();
case FieldTextValue:
return QString(fieldData(index, FieldFrameValue,
streamIndex).toByteArray().toHex());
case FieldFrameValue:
{
QByteArray fv;
int dataLen;
dataLen = protocolFrameSize(streamIndex);
// FIXME: Hack! Bad! Bad! Very Bad!!!
if (dataLen <= 0)
dataLen = 1;
fv.resize(dataLen+4);
switch(data.pattern_mode())
{
case OstProto::Payload::e_dp_fixed_word:
for (int i = 0; i < (dataLen/4)+1; i++)
qToBigEndian((quint32) data.pattern(),
(uchar*)(fv.data()+(i*4)) );
break;
case OstProto::Payload::e_dp_inc_byte:
for (int i = 0; i < dataLen; i++)
fv[i] = i % (0xFF + 1);
break;
case OstProto::Payload::e_dp_dec_byte:
for (int i = 0; i < dataLen; i++)
fv[i] = 0xFF - (i % (0xFF + 1));
break;
case OstProto::Payload::e_dp_random:
//! \todo (HIGH) cksum is incorrect for random pattern
for (int i = 0; i < dataLen; i++)
fv[i] = qrand() % (0xFF + 1);
break;
default:
qWarning("Unhandled data pattern %d",
data.pattern_mode());
}
fv.resize(dataLen);
return fv;
}
default:
break;
}
break;
// Meta fields
case payload_dataPatternMode:
switch(attrib)
{
case FieldValue: return data.pattern_mode();
default: break;
}
break;
default:
break;
}
return AbstractProtocol::fieldData(index, attrib, streamIndex);
}
bool PayloadProtocol::setFieldData(int index, const QVariant &value,
FieldAttrib attrib)
{
bool isOk = false;
if (attrib != FieldValue)
return false;
switch (index)
{
case payload_dataPattern:
{
uint pattern = value.toUInt(&isOk);
if (isOk)
data.set_pattern(pattern);
break;
}
case payload_dataPatternMode:
{
uint mode = value.toUInt(&isOk);
if (isOk && data.DataPatternMode_IsValid(mode))
data.set_pattern_mode(OstProto::Payload::DataPatternMode(mode));
else
isOk = false;
break;
}
default:
qFatal("%s: unimplemented case %d in switch", __PRETTY_FUNCTION__,
index);
break;
}
return isOk;
}
bool PayloadProtocol::isProtocolFrameValueVariable() const
{
return (AbstractProtocol::isProtocolFrameValueVariable()
|| isProtocolFrameSizeVariable());
}
bool PayloadProtocol::isProtocolFrameSizeVariable() const
{
if (mpStream->lenMode() == StreamBase::e_fl_fixed)
return false;
else
return true;
}
int PayloadProtocol::protocolFrameVariableCount() const
{
int count = AbstractProtocol::protocolFrameVariableCount();
if (data.pattern_mode() == OstProto::Payload::e_dp_random)
return mpStream->frameCount();
count = AbstractProtocol::lcm(count, mpStream->frameSizeVariableCount());
return count;
}
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