142 lines
3.8 KiB
C
142 lines
3.8 KiB
C
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/* override default macros from ../port/usb.h */
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#undef dprint
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#undef ddprint
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#undef deprint
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#undef ddeprint
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#define dprint if(ehcidebug)print
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#define ddprint if(ehcidebug>1)print
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#define deprint if(ehcidebug || ep->debug)print
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#define ddeprint if(ehcidebug>1 || ep->debug>1)print
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enum {
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/* typed links */
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Lterm = 1,
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Litd = 0<<1,
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Lqh = 1<<1,
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Lsitd = 2<<1,
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Lfstn = 3<<1, /* we don't use these */
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/* Cmd reg. */
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Cstop = 0x00000, /* stop running */
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Crun = 0x00001, /* start operation */
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Chcreset = 0x00002, /* host controller reset */
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Cflsmask = 0x0000C, /* frame list size bits */
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Cfls1024 = 0x00000, /* frame list size 1024 */
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Cfls512 = 0x00004, /* frame list size 512 frames */
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Cfls256 = 0x00008, /* frame list size 256 frames */
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Cpse = 0x00010, /* periodic sched. enable */
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Case = 0x00020, /* async sched. enable */
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Ciasync = 0x00040, /* interrupt on async advance doorbell */
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Citc1 = 0x10000, /* interrupt threshold ctl. 1 µframe */
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Citc4 = 0x40000, /* same. 2 µframes */
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/* ... */
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Citc8 = 0x80000, /* same. 8 µframes (can go up to 64) */
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/* Sts reg. */
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Sasyncss = 0x08000, /* aync schedule status */
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Speriodss = 0x04000, /* periodic schedule status */
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Srecl = 0x02000, /* reclamnation (empty async sched.) */
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Shalted = 0x01000, /* h.c. is halted */
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Sasync = 0x00020, /* interrupt on async advance */
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Sherr = 0x00010, /* host system error */
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Sfrroll = 0x00008, /* frame list roll over */
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Sportchg = 0x00004, /* port change detect */
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Serrintr = 0x00002, /* error interrupt */
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Sintr = 0x00001, /* interrupt */
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Sintrs = 0x0003F, /* interrupts status */
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/* Portsc reg. */
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Pspresent = 0x00000001, /* device present */
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Psstatuschg = 0x00000002, /* Pspresent changed */
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Psenable = 0x00000004, /* device enabled */
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Pschange = 0x00000008, /* Psenable changed */
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Psresume = 0x00000040, /* resume detected */
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Pssuspend = 0x00000080, /* port suspended */
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Psreset = 0x00000100, /* port reset */
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Pspower = 0x00001000, /* port power on */
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/* Intr reg. */
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Iusb = 0x01, /* intr. on usb */
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Ierr = 0x02, /* intr. on usb error */
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Iportchg = 0x04, /* intr. on port change */
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Ifrroll = 0x08, /* intr. on frlist roll over */
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Ihcerr = 0x10, /* intr. on host error */
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Iasync = 0x20, /* intr. on async advance enable */
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Iall = 0x3F, /* all interrupts */
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Callmine = 1,
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/* hack to disable port handoff */
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Psowner = 0,
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Pslinemask = 0,
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Pslow = -1
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};
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typedef struct Ctlr Ctlr;
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typedef void Ecapio;
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typedef struct Eopio Eopio;
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typedef struct Isoio Isoio;
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typedef struct Poll Poll;
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typedef struct Qh Qh;
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typedef struct Qtree Qtree;
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#pragma incomplete Ctlr
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struct Eopio
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{
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ulong cmd;
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ulong sts;
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ulong intr;
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ulong frno;
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ulong dummy1[2];
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ulong frbase;
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ulong link;
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ulong dummy2[9];
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ulong config;
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ulong portsc[1];
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};
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struct Poll
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{
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Lock;
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Rendez;
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int must;
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int does;
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};
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struct Ctlr
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{
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Rendez; /* for waiting to async advance doorbell */
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Lock; /* for ilock. qh lists and basic ctlr I/O */
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QLock portlck; /* for port resets/enable... (and doorbell) */
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int active; /* in use or not */
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void* capio; /* base address for debug info */
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Eopio* opio; /* Operational i/o regs */
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int nframes; /* 1024, 512, or 256 frames in the list */
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ulong* frames; /* periodic frame list (hw) */
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Qh* qhs; /* async Qh circular list for bulk/ctl */
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Qtree* tree; /* tree of Qhs for the periodic list */
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int ntree; /* number of dummy qhs in tree */
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Qh* intrqhs; /* list of (not dummy) qhs in tree */
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Isoio* iso; /* list of active Iso I/O */
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ulong load;
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ulong isoload;
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int nintr; /* number of interrupts attended */
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int ntdintr; /* number of intrs. with something to do */
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int nqhintr; /* number of async td intrs. */
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int nisointr; /* number of periodic td intrs. */
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int nreqs;
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Poll poll;
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ulong base;
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int irq;
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ulong* r;
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};
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extern int ehcidebug;
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void ehcilinkage(Hci *hp);
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void ehcimeminit(Ctlr *ctlr);
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void ehcirun(Ctlr *ctlr, int on);
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