--- nono/vm/scsi.h	2026/04/29 17:04:32	1.1.1.3
+++ nono/vm/scsi.h	2026/04/29 17:04:39	1.1.1.5
@@ -1,6 +1,7 @@
 //
 // nono
-// Copyright (C) 2018 isaki@NetBSD.org
+// Copyright (C) 2020 nono project
+// Licensed under nono-license.txt
 //
 
 #pragma once
@@ -42,10 +43,10 @@ class SCSI
 	};
 
 	// フェーズ文字列を返す
-	static const char * const GetPhaseName(int phase) {
+	static const char * GetPhaseName(int phase) {
 		return GetPhaseName((Phase)phase);
 	}
-	static const char * const GetPhaseName(Phase phase) {
+	static const char * GetPhaseName(Phase phase) {
 		switch (phase) {
 		 case BusFree:		return "BusFree";
 		 case Arbitration:	return "Arbitration";
@@ -57,10 +58,10 @@ class SCSI
 	}
 
 	// 情報転送フェーズ文字列を返す
-	static const char * const GetXferPhaseName(int xfer) {
+	static const char * GetXferPhaseName(int xfer) {
 		return GetXferPhaseName((XferPhase)xfer);
 	}
-	static const char * const GetXferPhaseName(XferPhase xfer) {
+	static const char * GetXferPhaseName(XferPhase xfer) {
 		switch (xfer) {
 		 case DataOut:	return "DataOut";
 		 case DataIn:	return "DataIn";
@@ -74,7 +75,7 @@ class SCSI
 	}
 
 	// デバイス種別
-	enum DevType {
+	enum class DevType {
 		None = 0,
 		HD,
 	};
@@ -175,6 +176,34 @@ class SCSI
 		static const uint8 Identify					= 0x80;	// 0x80..0xff
 	};
 
+	// センスキー
+	struct SenseKey {
+		static const uint8 NoSense			= 0x0;
+		static const uint8 RecoveredError	= 0x1;
+		static const uint8 NotReady			= 0x2;
+		static const uint8 MediumError		= 0x3;
+		static const uint8 HardwareError	= 0x4;
+		static const uint8 IllegalRequest	= 0x5;
+		static const uint8 UnitAttention	= 0x6;
+		static const uint8 DataProtect		= 0x7;
+		static const uint8 BlankCheck		= 0x8;
+		static const uint8 VendorSpecific	= 0x9;
+		static const uint8 CopyAborted		= 0xa;
+		static const uint8 AbortedCommand	= 0xb;
+		static const uint8 Equal			= 0xc;
+		static const uint8 VolumeOverflow	= 0xd;
+		static const uint8 Miscompare		= 0xe;
+		static const uint8 Reserved			= 0xf;
+	};
+
+	// ASC/ASCQ
+	// 上位バイトが ASC、下位バイトが ASCQ を示す。
+	struct ASC {
+		static const uint16 NoAdditionalSenseInformation	= 0x0000;
+		static const uint16 InvalidCommandOperationCode		= 0x2000;
+		static const uint16 InvalidFieldInCDB				= 0x2400;
+	};
+
 	// Mode Select(6) ヘッダ
 	struct ModeParamHdr {
 		uint8 mode_param_len;		// バイト長 (このバイトを含まずこれ以降)