[alsa-devel] looping S/PDIF data
drzeus at drzeus.cx
Fri Jun 20 21:45:16 CEST 2008
On Thu, 19 Jun 2008 14:48:19 +0200
Takashi Iwai <tiwai at suse.de> wrote:
> At Thu, 19 Jun 2008 14:39:05 +0200 (CEST),
> Jaroslav Kysela wrote:
> > I don't think that this patch is correct. DMA transfers should be disabled
> > by:
> > outl(what, TRID_REG(trident, T4D_STOP_B));
> > outl(val, TRID_REG(trident, T4D_AINTEN_B));
> They are already in the trigger callback as long as I saw the code
> quickly. So the problem should be somewhere else.
> > lines. Adding &= ~SPDIF_EN can disable output from AC97 to S/PDIF as well.
> That's true.
> Anyway, if you are up now, I'll let you hunt further as you are the
> author of the driver :)
Are there any specs on this hardware? I could play around a bit myself,
but I can't really find any documentation on the registers.
-- Pierre Ossman
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