#pragma	lib	"libfis.a"#pragma	src	"/sys/src/libfis" /* ata errors */enum {	Emed	= 1<<0,		/* media error */	Enm	= 1<<1,		/* no media */	Eabrt	= 1<<2,		/* abort */	Emcr	= 1<<3,		/* media change request */	Eidnf	= 1<<4,		/* no user-accessible address */	Emc	= 1<<5,		/* media change */	Eunc	= 1<<6,		/* data error */	Ewp	= 1<<6,		/* write protect */	Eicrc	= 1<<7,		/* interface crc error */ 	Efatal	= Eidnf|Eicrc,	/* must sw reset */}; /* ata status */enum {	ASerr	= 1<<0,		/* error */	ASdrq	= 1<<3,		/* request */	ASdf	= 1<<5,		/* fault */	ASdrdy	= 1<<6,		/* ready */	ASbsy	= 1<<7,		/* busy */ 	ASobs	= 1<<1|1<<2|1<<4,}; enum {	/* fis types */	H2dev		= 0x27,	D2host		= 0x34, 	/* fis flags bits */	Fiscmd		= 0x80, 	/* ata bits */	Ataobs		= 0xa0,	Atalba		= 0x40, 	/* nominal fis size (fits any fis) */	Fissize		= 0x20,}; /* sata device-to-host (0x27) fis layout */enum {	Ftype,	Fflags,	Fcmd,	Ffeat,	Flba0,	Flba8,	Flba16,	Fdev,	Flba24,	Flba32,	Flba40,	Ffeat8,	Fsc,	Fsc8,	Ficc,		/* isochronous cmd completion */	Fcontrol,}; /* sata host-to-device fis (0x34) differences */enum{	Fioport	= 1,	Fstatus,	Frerror,}; /* ata protcol type */enum{	Pnd	= 0<<0,	/* data direction */	Pin	= 1<<0,	Pout	= 2<<0,	Pdatam	= 3<<0, 	Ppio	= 1<<2,	/* ata protocol */	Pdma	= 2<<2,	Pdmq	= 3<<2,	Preset	= 4<<2,	Pdiag	= 5<<2,	Ppkt	= 6<<2,	Pprotom	= 7<<2, 	P48	= 0<<5,	/* command “size” */	P28	= 1<<5,	Pcmdszm	= 1<<5, 	Pssn	= 0<<6,	/* sector size */	P512	= 1<<6,	Pssm	= 1<<6,}; typedef struct Sfis Sfis;struct Sfis {	ushort	feat;	uchar	udma;	uchar	speeds;	uint	sig;	uint	lsectsz;	uint	physshift;	/* log2(log/phys) */	uint	c;		/* disgusting, no? */	uint	h;	uint	s;}; enum {	Dlba	= 1<<0,	/* required for sata */	Dllba 	= 1<<1,	Dsmart	= 1<<2,	Dpower	= 1<<3,	Dnop	= 1<<4,	Datapi	= 1<<5,	Datapi16= 1<<6,	Data8	= 1<<7,	Dsct	= 1<<8,	Dnflag	= 9,}; enum {	Pspinup	= 1<<0,	Pidready	= 1<<1,}; void	setfissig(Sfis*, uint);int	txmodefis(Sfis*, uchar*, uchar);int	atapirwfis(Sfis*, uchar*, uchar*, int, int);int	featfis(Sfis*, uchar*, uchar);int	flushcachefis(Sfis*, uchar*);int	identifyfis(Sfis*, uchar*);int	nopfis(Sfis*, uchar*, int);int	rwfis(Sfis*, uchar*, int, int, uvlong);void	skelfis(uchar*);void	sigtofis(Sfis*, uchar*);uvlong	fisrw(Sfis*, uchar*, int*); void	idmove(char*, ushort*, int);vlong	idfeat(Sfis*, ushort*);uvlong	idwwn(Sfis*, ushort*);int	idss(Sfis*, ushort*);int	idpuis(ushort*);ushort	id16(ushort*, int);uint	id32(ushort*, int);uvlong	id64(ushort*, int);char	*pflag(char*, char*, Sfis*);uint	fistosig(uchar*); /* scsi */typedef struct Cfis Cfis;struct Cfis {	uchar	phyid;	uchar	encid[8];	uchar	tsasaddr[8];	uchar	ssasaddr[8];	uchar	ict[2];}; void	smpskelframe(Cfis*, uchar*, int);uint	sashash(uvlong);uchar	*sasbhash(uchar*, uchar*);