ref: 4e4f2aca32c3409a5fca3341dccd14318c18f9b1
dir: /sys/src/9/zynq/usbehci.h/
/* override default macros from ../port/usb.h */ #undef dprint #undef ddprint #undef deprint #undef ddeprint #define dprint if(ehcidebug)print #define ddprint if(ehcidebug>1)print #define deprint if(ehcidebug || ep->debug)print #define ddeprint if(ehcidebug>1 || ep->debug>1)print enum { /* typed links */ Lterm = 1, Litd = 0<<1, Lqh = 1<<1, Lsitd = 2<<1, Lfstn = 3<<1, /* we don't use these */ /* Cmd reg. */ Cstop = 0x00000, /* stop running */ Crun = 0x00001, /* start operation */ Chcreset = 0x00002, /* host controller reset */ Cflsmask = 0x0000C, /* frame list size bits */ Cfls1024 = 0x00000, /* frame list size 1024 */ Cfls512 = 0x00004, /* frame list size 512 frames */ Cfls256 = 0x00008, /* frame list size 256 frames */ Cpse = 0x00010, /* periodic sched. enable */ Case = 0x00020, /* async sched. enable */ Ciasync = 0x00040, /* interrupt on async advance doorbell */ Citc1 = 0x10000, /* interrupt threshold ctl. 1 µframe */ Citc4 = 0x40000, /* same. 2 µframes */ /* ... */ Citc8 = 0x80000, /* same. 8 µframes (can go up to 64) */ /* Sts reg. */ Sasyncss = 0x08000, /* aync schedule status */ Speriodss = 0x04000, /* periodic schedule status */ Srecl = 0x02000, /* reclamnation (empty async sched.) */ Shalted = 0x01000, /* h.c. is halted */ Sasync = 0x00020, /* interrupt on async advance */ Sherr = 0x00010, /* host system error */ Sfrroll = 0x00008, /* frame list roll over */ Sportchg = 0x00004, /* port change detect */ Serrintr = 0x00002, /* error interrupt */ Sintr = 0x00001, /* interrupt */ Sintrs = 0x0003F, /* interrupts status */ /* Portsc reg. */ Pspresent = 0x00000001, /* device present */ Psstatuschg = 0x00000002, /* Pspresent changed */ Psenable = 0x00000004, /* device enabled */ Pschange = 0x00000008, /* Psenable changed */ Psresume = 0x00000040, /* resume detected */ Pssuspend = 0x00000080, /* port suspended */ Psreset = 0x00000100, /* port reset */ Pspower = 0x00001000, /* port power on */ /* Intr reg. */ Iusb = 0x01, /* intr. on usb */ Ierr = 0x02, /* intr. on usb error */ Iportchg = 0x04, /* intr. on port change */ Ifrroll = 0x08, /* intr. on frlist roll over */ Ihcerr = 0x10, /* intr. on host error */ Iasync = 0x20, /* intr. on async advance enable */ Iall = 0x3F, /* all interrupts */ Callmine = 1, /* hack to disable port handoff */ Psowner = 0, Pslinemask = 0, Pslow = -1 }; typedef struct Ctlr Ctlr; typedef void Ecapio; typedef struct Eopio Eopio; typedef struct Isoio Isoio; typedef struct Poll Poll; typedef struct Qh Qh; typedef struct Qtree Qtree; #pragma incomplete Ctlr struct Eopio { /*140*/ ulong cmd; /*144*/ ulong sts; /*148*/ ulong intr; /*14c*/ ulong frno; /*150*/ ulong reserved1; /*154*/ ulong frbase; /*158*/ ulong link; /*15c*/ ulong _ttctrl; /*160*/ ulong _burstsize; /*164*/ ulong _txfilltuning; /*168*/ ulong _txttfilltuning; /*16c*/ ulong _ic_usb; /*170*/ ulong _ulpi_viewport; /*174*/ ulong reserved2; /*178*/ ulong _endptnak; /*17c*/ ulong _endptnaken; /*180*/ ulong config; /*184*/ ulong portsc[1]; }; struct Poll { Lock; Rendez; int must; int does; }; struct Ctlr { Rendez; /* for waiting to async advance doorbell */ Lock; /* for ilock. qh lists and basic ctlr I/O */ QLock portlck; /* for port resets/enable... (and doorbell) */ int active; /* in use or not */ void* capio; /* base address for debug info */ Eopio* opio; /* Operational i/o regs */ void* (*tdalloc)(ulong,int,ulong); void* (*dmaalloc)(ulong); void (*dmafree)(void*); void (*dmaflush)(int,void*,ulong len); int nframes; /* 1024, 512, or 256 frames in the list */ ulong* frames; /* periodic frame list (hw) */ Qh* qhs; /* async Qh circular list for bulk/ctl */ Qtree* tree; /* tree of Qhs for the periodic list */ int ntree; /* number of dummy qhs in tree */ Qh* intrqhs; /* list of (not dummy) qhs in tree */ Isoio* iso; /* list of active Iso I/O */ ulong load; ulong isoload; int nintr; /* number of interrupts attended */ int ntdintr; /* number of intrs. with something to do */ int nqhintr; /* number of async td intrs. */ int nisointr; /* number of periodic td intrs. */ int nreqs; Poll poll; ulong base; int irq; ulong* r; }; extern int ehcidebug; void ehcilinkage(Hci *hp); void ehcimeminit(Ctlr *ctlr); void ehcirun(Ctlr *ctlr, int on);