164 lines
2.8 KiB
C
164 lines
2.8 KiB
C
#pragma lib "libfis.a"
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#pragma src "/sys/src/libfis"
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/* ata errors */
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enum {
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Emed = 1<<0, /* media error */
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Enm = 1<<1, /* no media */
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Eabrt = 1<<2, /* abort */
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Emcr = 1<<3, /* media change request */
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Eidnf = 1<<4, /* no user-accessible address */
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Emc = 1<<5, /* media change */
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Eunc = 1<<6, /* data error */
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Ewp = 1<<6, /* write protect */
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Eicrc = 1<<7, /* interface crc error */
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Efatal = Eidnf|Eicrc, /* must sw reset */
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};
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/* ata status */
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enum {
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ASerr = 1<<0, /* error */
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ASdrq = 1<<3, /* request */
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ASdf = 1<<5, /* fault */
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ASdrdy = 1<<6, /* ready */
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ASbsy = 1<<7, /* busy */
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ASobs = 1<<1|1<<2|1<<4,
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};
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enum {
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/* fis types */
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H2dev = 0x27,
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D2host = 0x34,
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/* fis flags bits */
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Fiscmd = 0x80,
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/* ata bits */
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Ataobs = 0xa0,
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Atalba = 0x40,
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/* nominal fis size (fits any fis) */
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Fissize = 0x20,
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};
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/* sata device-to-host (0x27) fis layout */
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enum {
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Ftype,
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Fflags,
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Fcmd,
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Ffeat,
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Flba0,
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Flba8,
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Flba16,
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Fdev,
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Flba24,
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Flba32,
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Flba40,
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Ffeat8,
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Fsc,
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Fsc8,
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Ficc, /* isochronous cmd completion */
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Fcontrol,
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};
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/* sata host-to-device fis (0x34) differences */
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enum{
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Fioport = 1,
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Fstatus,
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Frerror,
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};
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/* ata protcol type */
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enum{
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Pnd = 0<<0, /* data direction */
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Pin = 1<<0,
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Pout = 2<<0,
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Pdatam = 3<<0,
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Ppio = 1<<2, /* ata protocol */
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Pdma = 2<<2,
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Pdmq = 3<<2,
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Preset = 4<<2,
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Pdiag = 5<<2,
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Ppkt = 6<<2,
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Pprotom = 7<<2,
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P48 = 0<<5, /* command “size” */
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P28 = 1<<5,
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Pcmdszm = 1<<5,
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Pssn = 0<<6, /* sector size */
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P512 = 1<<6,
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Pssm = 1<<6,
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};
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typedef struct Sfis Sfis;
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struct Sfis {
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ushort feat;
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uchar udma;
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uchar speeds;
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uint sig;
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uint lsectsz;
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uint physshift; /* log2(log/phys) */
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uint physalign; /* location of lba0 within phys0 */
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uint c; /* disgusting, no? */
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uint h;
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uint s;
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};
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enum {
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Dlba = 1<<0, /* required for sata */
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Dllba = 1<<1,
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Dsmart = 1<<2,
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Dpower = 1<<3,
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Dnop = 1<<4,
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Datapi = 1<<5,
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Datapi16= 1<<6,
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Data8 = 1<<7,
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Dsct = 1<<8,
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Dnflag = 9,
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};
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enum {
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Pspinup = 1<<0,
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Pidready = 1<<1,
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};
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void setfissig(Sfis*, uint);
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int txmodefis(Sfis*, uchar*, uchar);
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int atapirwfis(Sfis*, uchar*, uchar*, int, int);
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int featfis(Sfis*, uchar*, uchar);
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int flushcachefis(Sfis*, uchar*);
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int identifyfis(Sfis*, uchar*);
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int nopfis(Sfis*, uchar*, int);
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int rwfis(Sfis*, uchar*, int, int, uvlong);
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void skelfis(uchar*);
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void sigtofis(Sfis*, uchar*);
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uvlong fisrw(Sfis*, uchar*, int*);
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void idmove(char*, ushort*, int);
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vlong idfeat(Sfis*, ushort*);
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uvlong idwwn(Sfis*, ushort*);
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int idss(Sfis*, ushort*);
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int idpuis(ushort*);
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ushort id16(ushort*, int);
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uint id32(ushort*, int);
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uvlong id64(ushort*, int);
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char *pflag(char*, char*, Sfis*);
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uint fistosig(uchar*);
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/* scsi */
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typedef struct Cfis Cfis;
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struct Cfis {
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uchar phyid;
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uchar encid[8];
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uchar tsasaddr[8];
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uchar ssasaddr[8];
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uchar ict[2];
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};
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void smpskelframe(Cfis*, uchar*, int);
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uint sashash(uvlong);
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uchar *sasbhash(uchar*, uchar*);
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