RASCSI/cpp/hal/data_sample.cpp

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//---------------------------------------------------------------------------
//
// SCSI Target Emulator PiSCSI
// for Raspberry Pi
//
// Copyright (C) 2022 akuker
//
// [ SCSI Bus Monitor ]
//
//---------------------------------------------------------------------------
#include "hal/bus.h"
#include "hal/data_sample.h"
#include <string>
using namespace std;
string DataSample::GetPhaseStr() const
{
return BUS::GetPhaseStrRaw(GetPhase());
}
phase_t DataSample::GetPhase() const
{
// Selection Phase
if (GetSEL()) {
return phase_t::selection;
}
// Bus busy phase
if (!GetBSY()) {
return phase_t::busfree;
}
// Get target phase from bus signal line
uint32_t mci = GetMSG() ? 0x04 : 0x00;
mci |= GetCD() ? 0x02 : 0x00;
mci |= GetIO() ? 0x01 : 0x00;
return BUS::GetPhase(mci);
}