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#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 physalign; /* location of lba0 within phys0 */
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*);
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