mirror of https://github.com/akuker/RASCSI.git
223 lines
5.1 KiB
C++
223 lines
5.1 KiB
C++
//---------------------------------------------------------------------------
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//
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// X68000 EMULATOR "XM6"
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//
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// Copyright (C) 2001-2006 PI.(ytanaka@ipc-tokai.or.jp)
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// Copyright (C) 2014-2020 GIMONS
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//
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// [ SCSI Common Functionality ]
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//
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//---------------------------------------------------------------------------
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#pragma once
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#include "os.h"
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//===========================================================================
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//
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// Status byte codes, Sense Keys and Additional Sense Codes
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// (See https://www.t10.org/lists/1spc-lst.htm)
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//
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//===========================================================================
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class ERROR_CODES
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{
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public:
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enum status : int {
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GOOD = 0x00,
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CHECK_CONDITION = 0x02,
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CONDITION_MET = 0x04,
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BUSY = 0x08,
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INTERMEDIATE = 0x10,
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INTERMEDIATE_CONDITION_MET = 0x14,
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RESERVATION_CONFLICT = 0x18,
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COMMAND_TERMINATED = 0x22,
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QUEUE_FULL = 0x28
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};
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enum sense_key : int {
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NO_SENSE = 0x00,
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RECOVERED_ERROR = 0x01,
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NOT_READY = 0x02,
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MEDIUM_ERROR = 0x03,
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HARDWARE_ERROR = 0x04,
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ILLEGAL_REQUEST = 0x05,
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UNIT_ATTENTION = 0x06,
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DATA_PROTECT = 0x07,
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BLANK_CHECK = 0x08,
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VENDOR_SPECIFIC = 0x09,
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COPY_ABORTED = 0x0a,
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ABORTED_COMMAND = 0x0b,
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VOLUME_OVERFLOW = 0x0d,
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MISCOMPARE = 0x0e,
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COMPLETED = 0x0f
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};
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enum asc : int {
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NO_ADDITIONAL_SENSE_INFORMATION = 0x00,
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INVALID_COMMAND_OPERATION_CODE = 0x20,
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LBA_OUT_OF_RANGE = 0x21,
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INVALID_FIELD_IN_CDB = 0x24,
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INVALID_LUN = 0x25,
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WRITE_PROTECTED = 0x27,
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NOT_READY_TO_READY_CHANGE = 0x28,
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MEDIUM_NOT_PRESENT = 0x3a
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};
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};
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//===========================================================================
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//
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// SASI/SCSI Bus
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//
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//===========================================================================
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class BUS
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{
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public:
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// Operation modes definition
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enum mode_e {
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TARGET = 0,
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INITIATOR = 1,
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MONITOR = 2,
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};
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// Phase definitions
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enum phase_t : BYTE {
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busfree,
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arbitration,
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selection,
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reselection,
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command,
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execute, // Execute phase is an extension of the command phase
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datain,
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dataout,
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status,
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msgin,
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msgout,
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reserved // Unused
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};
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BUS() { };
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virtual ~BUS() { };
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// Basic Functions
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virtual BOOL Init(mode_e mode) = 0;
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virtual void Reset() = 0;
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virtual void Cleanup() = 0;
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phase_t GetPhase();
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static phase_t GetPhase(DWORD mci)
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{
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return phase_table[mci];
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}
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static const char* GetPhaseStrRaw(phase_t current_phase);
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// Get the string phase name, based upon the raw data
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// Extract as specific pin field from a raw data capture
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static inline DWORD GetPinRaw(DWORD raw_data, DWORD pin_num)
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{
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return ((raw_data >> pin_num) & 1);
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}
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virtual bool GetBSY() = 0;
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virtual void SetBSY(bool ast) = 0;
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virtual BOOL GetSEL() = 0;
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virtual void SetSEL(BOOL ast) = 0;
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virtual BOOL GetATN() = 0;
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virtual void SetATN(BOOL ast) = 0;
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virtual BOOL GetACK() = 0;
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virtual void SetACK(BOOL ast) = 0;
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virtual BOOL GetRST() = 0;
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virtual void SetRST(BOOL ast) = 0;
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virtual BOOL GetMSG() = 0;
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virtual void SetMSG(BOOL ast) = 0;
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virtual BOOL GetCD() = 0;
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virtual void SetCD(BOOL ast) = 0;
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virtual BOOL GetIO() = 0;
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virtual void SetIO(BOOL ast) = 0;
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virtual BOOL GetREQ() = 0;
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virtual void SetREQ(BOOL ast) = 0;
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virtual BYTE GetDAT() = 0;
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virtual void SetDAT(BYTE dat) = 0;
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virtual BOOL GetDP() = 0; // Get parity signal
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virtual int CommandHandShake(BYTE *buf) = 0;
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virtual int ReceiveHandShake(BYTE *buf, int count) = 0;
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virtual int SendHandShake(BYTE *buf, int count, int delay_after_bytes) = 0;
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virtual BOOL GetSignal(int pin) = 0;
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// Get SCSI input signal value
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virtual void SetSignal(int pin, BOOL ast) = 0;
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// Set SCSI output signal value
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static const int SEND_NO_DELAY = -1;
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// Passed into SendHandShake when we don't want to delay
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protected:
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phase_t m_current_phase = phase_t::reserved;
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private:
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static const phase_t phase_table[8];
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static const char* phase_str_table[];
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};
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namespace scsi_defs {
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enum scsi_command : int {
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eCmdTestUnitReady = 0x00,
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eCmdRezero = 0x01,
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eCmdRequestSense = 0x03,
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eCmdFormat = 0x04,
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eCmdReassign = 0x07,
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eCmdRead6 = 0x08,
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// DaynaPort specific command
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eCmdRetrieveStats = 0x09,
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eCmdWrite6 = 0x0A,
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eCmdSeek6 = 0x0B,
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// DaynaPort specific command
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eCmdSetIfaceMode = 0x0C,
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// DaynaPort specific command
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eCmdSetMcastAddr = 0x0D,
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// DaynaPort specific command
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eCmdEnableInterface = 0x0E,
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eCmdSynchronizeBuffer = 0x10,
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eCmdInquiry = 0x12,
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eCmdModeSelect6 = 0x15,
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eCmdReserve6 = 0x16,
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eCmdRelease6 = 0x17,
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eCmdModeSense6 = 0x1A,
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eCmdStartStop = 0x1B,
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eCmdSendDiag = 0x1D,
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eCmdRemoval = 0x1E,
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// ICD specific command
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eCmdIcd = 0x1F,
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eCmdReadCapacity10 = 0x25,
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eCmdRead10 = 0x28,
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eCmdWrite10 = 0x2A,
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eCmdSeek10 = 0x2B,
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eCmdVerify10 = 0x2F,
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eCmdSynchronizeCache10 = 0x35,
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eCmdReadDefectData10 = 0x37,
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eCmdReadLong10 = 0x3E,
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eCmdWriteLong10 = 0x3F,
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eCmdReadToc = 0x43,
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eCmdGetEventStatusNotification = 0x4A,
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eCmdModeSelect10 = 0x55,
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eCmdReserve10 = 0x56,
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eCmdRelease10 = 0x57,
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eCmdModeSense10 = 0x5A,
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eCmdRead16 = 0x88,
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eCmdWrite16 = 0x8A,
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eCmdVerify16 = 0x8F,
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eCmdSynchronizeCache16 = 0x91,
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eCmdReadCapacity16_ReadLong16 = 0x9E,
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eCmdWriteLong16 = 0x9F,
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eCmdReportLuns = 0xA0
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};
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};
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