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