merge sd changes from 9atom

1 files changed, 163 insertions, 0 deletions

diff --git a/sys/include/fis.h b/sys/include/fis.h
new file mode 100644
index 000000000..9ec0ba6aa
--- /dev/null
+++ b/sys/include/fis.h
@@ -0,0 +1,163 @@
+#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*);