/******************************************************************************* *	Scsi.h	SCSI interface headers ******************************************************************************* *//* *	Scsi data control block Class 0 comands */struct	Sidcb {	char	opcode;	char	hiblock;	char	miblock;	char	loblock;	char	noblocks;	char	control;};/* *	Scsi data control block Class 1 comands */struct	Sidcb1 {	char	opcode;	short	none;	char	hiblock;	char	miblock;	char	loblock;	char	none1;	char	hnoblocks;	char	lnoblocks;	char	control;};/* *	Scsi commands */# define	SICLASS(a)	(((a) >> 5) & 0x3) /* Scsi opcode class */# define	SICMDMASK(a)	((a) & 0xFF)	/* Scsi opcode */# define	SITEST_RDY	0	/* Test unit ready */# define	SIREZERO	1	/* Rezero unit */# define	SIREQSENSE	3	/* Request sense */# define	SIFORMAT	4# define	SIREASSIGNBLKS	7# define	SIREAD		8# define	SIWRITE		0x0A# define	SISEEK		0x0B# define	SIREADUSAGE	0x11# define	SIINQUIRY	0x12# define	SIM_SELECT	0x15# define	SIRESERVE	0x16# define	SIRELEASE	0x17# define	SIM_SENSE	0x1A# define	SISTART_STOP	0x1B# define	SIREC_DIAG	0x1C# define	SISEND_DIAG	0x1D# define	SIREAD_CAP	0x25# define	SIREADBIG	0x28# define	SIWRITEBIG	0x2A# define	SIREAD_DEFECT	0x37# define	SICERTIFY	0xE2/*	SCSI Sense errors */struct	Sierr {	char	logadd;	char	none0;	char	sensekey;	char	hiblk;	char	mhiblk;	char	mlblk;	char	loblk;	char	none1[5];	char	errcode;	char	none2[5];};/*	IOCTL command structure */struct	Siioctl {	struct	Sidcb dcb;		/* Comand to scsi */	char	*data;			/* Pointer to data area */};/*	IOCTL command structure Class 1 commands */struct	Siioctl1 {	struct	Sidcb1 dcb;		/* Comand to scsi */	char	*data;			/* Pointer to data area */};struct	Sicap {	long	lblock;	long	blocklen;};/*	SCSI errors */# define	SCSI_SELTIMEOUT	250000	/* Scsi SEL timeout 0.25 secs Approx */# define	SCSI_HSTIMEOUT	50000	/* Scsi Hand shake timeout */# define	SIERR_BUSY	1	/* SCSI BUSY timeout */# define	SIERR_NDEV	2	/* No device with the given ID */# define	SIERR_NTX	3	/* No request on tx timeout */# define	SIERR_NRX	4	/* No request on rx timeout */