Add SCSIStat()

libmacos/macos/scsi.h

@@ -27,6 +27,14 @@ enum {
 	scCompareErr	= 6,	/* Comparison error from scComp instruction */
 };
 
+enum {
+	scsiErrorBase	= -7936
+};
+
+enum {
+	scsiBusy	= scsiErrorBase + 49,
+};
+
 typedef struct TIB {	/* Transfer Instruction Block */
    short	opcode;	/* operation code */
    int		param1;	/* 1st parameter */
@@ -107,4 +115,15 @@ static inline OSErr SCSISelect(short targetID)
 
 	return ret;
 }
+
+static inline OSErr SCSIStat(void)
+{
+	register OSErr ret asm("%%d0");
+
+	asm("clr.w	-(%%sp)\n"
+		SCSIDispatch(_SCSIStat)
+	: "=d" (ret)  :: UNPRESERVED_REGS );
+
+	return ret;
+}
 #endif /* __MACOS_SCSI_H__ */

libmacos/macos/traps.h

@@ -77,6 +77,7 @@
 #define	_SCSIComplete	0x0004
 #define	_SCSIRead	0x0005
 #define	_SCSIWrite	0x0006
+#define _SCSIStat	0x000A
 
 #define SCSIDispatchSelector(a)	"	move.w	#"#a", -(%%sp)"