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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,293 @@ | ||
| /* | ||
| * 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, /* aggressive slumber & partial sleep */ | ||
| Aalpe = 1<<26, /* aggressive 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; | ||
|
|
||
| enum { | ||
| /* | ||
| * Aport sstatus bits (actually states): | ||
| * 11-8 interface power management | ||
| * 7-4 current interface speed (generation #) | ||
| * 3-0 device detection | ||
| */ | ||
| Intslumber = 0x600, | ||
| Intpartpwr = 0x200, | ||
| Intactive = 0x100, | ||
| Intpm = 0xf00, | ||
|
|
||
| Devphyoffline = 4, | ||
| Devphycomm = 2, /* phy communication established */ | ||
| Devpresent = 1, | ||
| Devdet = Devpresent | Devphycomm | Devphyoffline, | ||
| }; | ||
|
|
||
| /* 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 *pm; | ||
| } Aportc; |
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