Re: I want to dmix for my MIPS board, how can I do?

[Takashi Iwai <tiwai@suse.de>]

At Mon, 07 Mar 2005 14:47:33 -0500,
Lee Revell wrote:
> 
> On Mon, 2005-03-07 at 20:44 +0100, Takashi Iwai wrote:
> > At Mon, 07 Mar 2005 14:35:10 -0500,
> > Lee Revell wrote:
> > > 
> > > On Mon, 2005-03-07 at 22:24 +0800, 李建坤 wrote:
> > > > alsa-devel，
> > > > 
> > > >   I'm an device driver developer for MIPS board. Now, I'm in urgent need of dmix source code for my Achemy board.
> > > >   I want to dmix on my MIPS Au1x00 board, Segmentation Fault occurs. I look up the code of pcm_dmix.c for possible reason, 
> > > >   it says,
> > > >     #warning Please, recode mix_areas1() routine to your architecture...
> > > > 	warning Please, recode mix_areas2() routine to your architecture...
> > > >   Does it mean the dmix can only be used on X86 architecture now?
> > > >   if I want to use it on my MIPS board, how can I do? 
> > > >   
> > > >   Looking forward to anyone's reply! Tanks in advance!
> > > 
> > > Yup, that's exactly what it means.  Dmix is only implemented for x86
> > > now.  If you want to use it on another arch you have to code it
> > > yourself.
> > > 
> > > But, isn't there a cleaner way to handle this than segfaulting?  Why do
> > > we even compile the plugin for non-x86 archs?
> > 
> > Well, segfault is not intended, of course :)
> > 
> > Does the segfault still happen with the CVS version?
> > If so, there must be something wrong in another part (e.g. the general
> > mmap support on MIPS).
> 
> IIRC someone else reported a segfault trying to use dmix with another
> unsupported arch.  So this led me to believe the problem was related.

Could be.  I wanted to make sure of this because I changed/fixed the
dmix code recently on CVS.


Takashi


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