123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275 |
- /*
- * advanced host controller interface (sata)
- * © 2007 coraid, inc
- */
- /* 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,
- };
- /* pci configuration */
- enum {
- Abar = 5,
- };
- /*
- * ahci memory configuration
- *
- * 0000-0023 generic host control
- * 0024-009f reserved
- * 00a0-00ff vendor specific.
- * 0100-017f port 0
- * ...
- * 1080-1100 port 31
- */
- /* cap bits: supported features */
- enum {
- Hs64a = 1<<31, /* 64-bit addressing */
- Hsncq = 1<<30, /* ncq */
- Hssntf = 1<<29, /* snotification reg. */
- Hsmps = 1<<28, /* mech pres switch */
- Hsss = 1<<27, /* staggered spinup */
- Hsalp = 1<<26, /* aggressive link pm */
- Hsal = 1<<25, /* activity led */
- Hsclo = 1<<24, /* command-list override */
- Hiss = 1<<20, /* for interface speed */
- // Hsnzo = 1<<19,
- Hsam = 1<<18, /* ahci-mode only */
- Hspm = 1<<17, /* port multiplier */
- // Hfbss = 1<<16,
- Hpmb = 1<<15, /* multiple-block pio */
- Hssc = 1<<14, /* slumber state */
- Hpsc = 1<<13, /* partial-slumber state */
- Hncs = 1<<8, /* n command slots */
- Hcccs = 1<<7, /* coal */
- Hems = 1<<6, /* enclosure mgmt. */
- Hsxs = 1<<5, /* external sata */
- Hnp = 1<<0, /* n ports */
- };
- /* ghc bits */
- enum {
- Hae = 1<<31, /* enable ahci */
- Hie = 1<<1, /* " interrupts */
- Hhr = 1<<0, /* hba reset */
- };
- typedef struct {
- ulong cap;
- ulong ghc;
- ulong isr;
- ulong pi; /* ports implemented */
- ulong ver;
- ulong ccc; /* coaleasing control */
- ulong cccports;
- ulong emloc;
- ulong emctl;
- } Ahba;
- enum {
- Acpds = 1<<31, /* cold port detect status */
- Atfes = 1<<30, /* task file error status */
- Ahbfs = 1<<29, /* hba fatal */
- Ahbds = 1<<28, /* hba error (parity error) */
- Aifs = 1<<27, /* interface fatal §6.1.2 */
- Ainfs = 1<<26, /* interface error (recovered) */
- Aofs = 1<<24, /* too many bytes from disk */
- Aipms = 1<<23, /* incorrect prt mul status */
- Aprcs = 1<<22, /* PhyRdy change status Pxserr.diag.n */
- Adpms = 1<<7, /* mechanical presence status */
- Apcs = 1<<6, /* port connect diag.x */
- Adps = 1<<5, /* descriptor processed */
- Aufs = 1<<4, /* unknown fis diag.f */
- Asdbs = 1<<3, /* set device bits fis received w/ i bit set */
- Adss = 1<<2, /* dma setup */
- Apio = 1<<1, /* pio setup fis */
- Adhrs = 1<<0, /* device to host register fis */
- IEM = Acpds|Atfes|Ahbds|Ahbfs|Ahbds|Aifs|Ainfs|Aprcs|Apcs|Adps|
- Aufs|Asdbs|Adss|Adhrs,
- Ifatal = Atfes|Ahbfs|Ahbds|Aifs,
- };
- /* serror bits */
- enum {
- SerrX = 1<<26, /* exchanged */
- SerrF = 1<<25, /* unknown fis */
- SerrT = 1<<24, /* transition error */
- SerrS = 1<<23, /* link sequence */
- SerrH = 1<<22, /* handshake */
- SerrC = 1<<21, /* crc */
- SerrD = 1<<20, /* not used by ahci */
- SerrB = 1<<19, /* 10-tp-8 decode */
- SerrW = 1<<18, /* comm wake */
- SerrI = 1<<17, /* phy internal */
- SerrN = 1<<16, /* phyrdy change */
- ErrE = 1<<11, /* internal */
- ErrP = 1<<10, /* ata protocol violation */
- ErrC = 1<<9, /* communication */
- ErrT = 1<<8, /* transient */
- ErrM = 1<<1, /* recoverd comm */
- ErrI = 1<<0, /* recovered data integrety */
- ErrAll = ErrE|ErrP|ErrC|ErrT|ErrM|ErrI,
- SerrAll = SerrX|SerrF|SerrT|SerrS|SerrH|SerrC|SerrD|SerrB|SerrW|
- SerrI|SerrN|ErrAll,
- SerrBad = 0x7f<<19,
- };
- /* cmd register bits */
- enum {
- Aicc = 1<<28, /* interface communcations control. 4 bits */
- Aasp = 1<<27, /* agressive slumber & partial sleep */
- Aalpe = 1<<26, /* agressive link pm enable */
- Adlae = 1<<25, /* drive led on atapi */
- Aatapi = 1<<24, /* device is atapi */
- Aesp = 1<<21, /* external sata port */
- Acpd = 1<<20, /* cold presence detect */
- Ampsp = 1<<19, /* mechanical pres. */
- Ahpcp = 1<<18, /* hot plug capable */
- Apma = 1<<17, /* pm attached */
- Acps = 1<<16, /* cold presence state */
- Acr = 1<<15, /* cmdlist running */
- Afr = 1<<14, /* fis running */
- Ampss = 1<<13, /* mechanical presence switch state */
- Accs = 1<<8, /* current command slot 12:08 */
- Afre = 1<<4, /* fis enable receive */
- Aclo = 1<<3, /* command list override */
- Apod = 1<<2, /* power on dev (requires cold-pres. detect) */
- Asud = 1<<1, /* spin-up device; requires ss capability */
- Ast = 1<<0, /* start */
- Arun = Ast|Acr|Afre|Afr,
- };
- /* ctl register bits */
- enum {
- Aipm = 1<<8, /* interface power mgmt. 3=off */
- Aspd = 1<<4,
- Adet = 1<<0, /* device detection */
- };
- #define sstatus scr0
- #define sctl scr2
- #define serror scr1
- #define sactive scr3
- typedef struct {
- ulong list; /* PxCLB must be 1kb aligned. */
- ulong listhi;
- ulong fis; /* 256-byte aligned */
- ulong fishi;
- ulong isr;
- ulong ie; /* interrupt enable */
- ulong cmd;
- ulong res1;
- ulong task;
- ulong sig;
- ulong scr0;
- ulong scr2;
- ulong scr1;
- ulong scr3;
- ulong ci; /* command issue */
- ulong ntf;
- uchar res2[8];
- ulong vendor;
- } Aport;
- /* in host's memory; not memory mapped */
- typedef struct {
- uchar *base;
- uchar *d;
- uchar *p;
- uchar *r;
- uchar *u;
- ulong *devicebits;
- } Afis;
- enum {
- Lprdtl = 1<<16, /* physical region descriptor table len */
- Lpmp = 1<<12, /* port multiplier port */
- Lclear = 1<<10, /* clear busy on R_OK */
- Lbist = 1<<9,
- Lreset = 1<<8,
- Lpref = 1<<7, /* prefetchable */
- Lwrite = 1<<6,
- Latapi = 1<<5,
- Lcfl = 1<<0, /* command fis length in double words */
- };
- /* in hosts memory; memory mapped */
- typedef struct {
- ulong flags;
- ulong len;
- ulong ctab;
- ulong ctabhi;
- uchar reserved[16];
- } Alist;
- typedef struct {
- ulong dba;
- ulong dbahi;
- ulong pad;
- ulong count;
- } Aprdt;
- typedef struct {
- uchar cfis[0x40];
- uchar atapi[0x10];
- uchar pad[0x30];
- Aprdt prdt;
- } Actab;
- enum {
- Ferror = 1,
- Fdone = 2,
- };
- enum {
- Dllba = 1,
- Dsmart = 1<<1,
- Dpower = 1<<2,
- Dnop = 1<<3,
- Datapi = 1<<4,
- Datapi16= 1<<5,
- };
- typedef struct {
- // QLock;
- // Rendez;
- uchar flag;
- uchar feat;
- uchar smart;
- Afis fis;
- Alist *list;
- Actab *ctab;
- } Aportm;
- typedef struct {
- Aport *p;
- Aportm *m;
- } Aportc;
|