rom/usb/pciusb/ohciproto.h

   1 void ohciUpdateFrameCounter(struct PCIController *hc);
   2 void ohciAbortRequest(struct PCIController *hc, struct IOUsbHWReq *ioreq);
   3 BOOL ohciInit(struct PCIController *hc, struct PCIUnit *hu);
   4 void ohciFree(struct PCIController *hc, struct PCIUnit *hu);
   5
   6 /* /// "ohciAllocED()" */
   7 static inline struct OhciED * ohciAllocED(struct PCIController *hc)
   8 {
   9     struct OhciED *oed = hc->hc_OhciEDPool;
  10
  11     if(!oed)
  12     {
  13         // out of QHs!
  14         KPRINTF(20, ("Out of EDs!\n"));
  15         return NULL;
  16     }
  17
  18     hc->hc_OhciEDPool = oed->oed_Succ;
  19     return(oed);
  20 }
  21 /* \\\ */
  22
  23 /* /// "ohciFreeED()" */
  24 static inline void ohciFreeED(struct PCIController *hc, struct OhciED *oed)
  25 {
  26     oed->oed_HeadPtr = oed->oed_TailPtr;        // Protect against ocassional reuse
  27     CONSTWRITEMEM32_LE(&oed->oed_EPCaps, OECF_SKIP);
  28     SYNC;
  29
  30     oed->oed_IOReq     = NULL;
  31     oed->oed_Buffer    = NULL;
  32     oed->oed_SetupData = NULL;
  33     oed->oed_Succ = hc->hc_OhciEDPool;
  34     hc->hc_OhciEDPool = oed;
  35 }
  36 /* \\\ */
  37
  38 /* /// "ohciAllocTD()" */
  39 static inline struct OhciTD * ohciAllocTD(struct PCIController *hc)
  40 {
  41     struct OhciTD *otd = hc->hc_OhciTDPool;
  42
  43     if(!otd)
  44     {
  45         // out of TDs!
  46         KPRINTF(20, ("Out of TDs!\n"));
  47         return NULL;
  48     }
  49
  50     hc->hc_OhciTDPool = otd->otd_Succ;
  51     return(otd);
  52 }
  53 /* \\\ */
  54
  55 /* /// "ohciFreeTD()" */
  56 static inline void ohciFreeTD(struct PCIController *hc, struct OhciTD *otd)
  57 {
  58     otd->otd_NextTD = 0; // Protect against looped TD list in ocassion of TD reuse ("Rogue TD" state)
  59     SYNC;
  60
  61     otd->otd_ED = NULL;
  62     otd->otd_Succ = hc->hc_OhciTDPool;
  63     hc->hc_OhciTDPool = otd;
  64 }
  65 /* \\\ */
  66
  67 static inline void ohciDisableED(struct OhciED *oed)
  68 {
  69     ULONG ctrlstatus;
  70
  71     // disable ED
  72     ctrlstatus = READMEM32_LE(&oed->oed_EPCaps);
  73     ctrlstatus |= OECF_SKIP;
  74     WRITEMEM32_LE(&oed->oed_EPCaps, ctrlstatus);
  75
  76     // unlink from schedule
  77     oed->oed_Succ->oed_Pred = oed->oed_Pred;
  78     oed->oed_Pred->oed_Succ = oed->oed_Succ;
  79     oed->oed_Pred->oed_NextED = oed->oed_Succ->oed_Self;
  80     oed->oed_IOReq = NULL;
  81     CacheClearE(&oed->oed_Pred->oed_EPCaps, 16, CACRF_ClearD);
  82     SYNC;
  83 }
  84
  85 static inline void ohciDisableInt(struct PCIController *hc, ULONG mask)
  86 {
  87     WRITEREG32_LE(hc->hc_RegBase, OHCI_INTDIS, mask);
  88     hc->hc_PCIIntEnMask &= ~mask;
  89 }
  90
  91 static inline void ohciEnableInt(struct PCIController *hc, ULONG mask)
  92 {
  93     WRITEREG32_LE(hc->hc_RegBase, OHCI_INTSTATUS, mask); // Clear potential dangling status
  94     hc->hc_PCIIntEnMask |= mask;
  95     WRITEREG32_LE(hc->hc_RegBase, OHCI_INTEN, mask);
  96 }