X-Git-Url: http://wien.tomnetworks.com/gitweb/?p=ppcskel.git;a=blobdiff_plain;f=ohci.c;h=699f4029c1dfdd8466389487cc3e245d235cd125;hp=899d474e24d989b3e558ef4431f3bd52cda410ce;hb=35579f80179a8d3b09c5edb074a1ef67aa6e327d;hpb=364f2c37f1b3a971f60bf67a7030c56b550b1407

diff --git a/ohci.c b/ohci.c
index 899d474..699f402 100644
--- a/ohci.c
+++ b/ohci.c
@@ -48,6 +48,17 @@ void ohci_init() {
        * see output in ohci.default
        */
 
+       /* disable hc interrupts */
+       set32(OHCI0_HC_INT_DISABLE, OHCI_INTR_MIE);
+
+       /* save fmInterval and calculate FSMPS */
+#define FSMP(fi) (0x7fff & ((6 * ((fi) - 210)) / 7))
+#define FI 0x2edf /* 12000 bits per frame (-1) */
+       u32 fmint = read32(OHCI0_HC_FM_INTERVAL) & 0x3fff;
+       if(fmint != FI)
+	       gecko_printf("ohci-- fminterval delta: %d\n", fmint - FI);
+       fmint |= FSMP (fmint) << 16;
+
        /* enable interrupts of both usb host controllers */
        set32(EHCI_CTL, EHCI_CTL_OH0INTE | EHCI_CTL_OH1INTE | 0xe0000);
 
@@ -82,9 +93,10 @@ void ohci_init() {
        /* set periodicstart */
 #define FIT (1<<31)
        u32 fmInterval = read32(OHCI0_HC_FM_INTERVAL) &0x3fff;
+	printf("OHCI0_HC_FMINTERVAL: %08X OCHI0_HC_FMINTERVAL&0x3fff: %08X\n", read32(OHCI0_HC_FM_INTERVAL), fmInterval);
        u32 fit = read32(OHCI0_HC_FM_INTERVAL) & FIT;
 
-       write32(OHCI0_HC_FM_INTERVAL, read32(OHCI0_HC_FM_INTERVAL) | (fit ^ FIT));
+       write32(OHCI0_HC_FM_INTERVAL, fmint | (fit ^ FIT));
        write32(OHCI0_HC_PERIODIC_START, ((9*fmInterval)/10)&0x3fff);
 
        /* testing bla */