On Thu, 29 Nov 2001, Paul Davis wrote:
> It looks like that the capture direction receives an interrupt before the
> >capture pointer has reached the period size boundary. You can increase the
> >insterrupt delay, something like this:
>
> i'll check on that, but i don't think thats what happened above. this
> should make it clearer (i processed the log this time):
>
> ----------------------------------------------------------------------
>
> elapsed msecs interval cycle event
> usecs counter
> -----------------------------------------------------------------------
>
> 2.644553 1171.313 5043063 trident interrupt chn = 0x40000000
>
> capture interrupt discarded as spurious (but history is not shown)
>
> 2.671316 26.762 5055106 trident interrupt chn = 0x80000000
> 2.686758 15.442 5062055 wakeup stream playback with 66 (since capture
>wake: 644915)
>
> only playback woken, capture is still sleeping
>
> 2.704093 17.336 5069856 playback poll 2601: avail = 66
> 2.712380 8.287 5073585 capture poll 2679: avail = 2
> 2.841204 128.824 5131556 capture poll 2680: avail = 2
>
> 4.150211 1309.007 5720609 trident interrupt chn = 0x80000000
>
> next period, interrupt received, for playback only
>
> 4.166867 16.656 5728104 wakeup stream playback with 130 (since capture
>wake: 1310964)
> 4.186267 19.400 5736834 trident interrupt chn = 0x40000000
>
> capture interrupt received, but discarded as spurious (too close to
> last interrupt (16+19 = 35usecs or 1.54 samples)). capture stream not
> woken.
It's really discarded as spurious? All voices has separate spurious
interrupt checking based on the global frame counter (stimer). Please, can
you verify it? I still think, that it would be better to call
snd_trident_capture_pointer() and see the actual ptr. My patch should
fix the problem, if ptr is less than period_size.
Jaroslav
-----
Jaroslav Kysela <[EMAIL PROTECTED]>
SuSE Linux http://www.suse.com
ALSA Project http://www.alsa-project.org
_______________________________________________
Alsa-devel mailing list
[EMAIL PROTECTED]
https://lists.sourceforge.net/lists/listinfo/alsa-devel
