On Wed, 10 Nov 2004 10:42:26 +0100, Lothar Wassmann
<[EMAIL PROTECTED]> wrote:
> Hi,
>
> > There's a field in the Frame Interval register (reg HcFmInterval,
> > 0x0D) called FSLargestDataPacket (FSMPS). It specifies the largest
> > amount of data in bits that can be sent or received by the HC in a
> > single transaction without causing an overrun.
> >
> > This field wasn't being set!
> >
> This field is set by the standard OHCI driver through the function
> periodic_reinit() defined in ohci.h and called from hc_start().
> The value written to fminterval is initialized in hc_reset().
>
>
> Lothar Wassmann
>
Hi. Thanks for that info. In any case, it wasn't being set for me.
I don't know where the missing link was, but could it be here?
static inline void periodic_reinit (struct ohci_hcd *ohci)
{
writel (ohci->fminterval, &ohci->regs->fminterval);
writel (((9 * FI) / 10) & 0x3fff, &ohci->regs->periodicstart);
writel (LSTHRESH, &ohci->regs->lsthresh);
}
Should that have an ohci_writel equivalent? I don't know of any place
where the ochi->regs->fminterval value get copied into the chip's
HcFmInterval register.
Thanks again,
Mike
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