SonyPI module and via82xx sound driver

SonyPI module and via82xx sound driver

[Markus Gaugusch]

Hi,
The sonypi module uses IO Address 0x1080 - 0x1084B, which is in the range
of the via82xx sound driver (0x1000 - 0x10ff). Is it possible to exclude
the address range of the sonypi module in the via82xx driver? I'm pretty
sure that it isn't really used by ALSA :)

thanks
Markus

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Re: SonyPI module and via82xx sound driver

[Takashi Iwai]

At Sun, 28 Dec 2003 20:47:07 +0100 (CET),
Markus Gaugusch wrote:
> 
> Hi,
> The sonypi module uses IO Address 0x1080 - 0x1084B, which is in the range
> of the via82xx sound driver (0x1000 - 0x10ff). Is it possible to exclude
> the address range of the sonypi module in the via82xx driver? I'm pretty
> sure that it isn't really used by ALSA :)

check lspci -v whether the via chip requires really this whole
region.  in the via82xx driver, we reserve the area with 256 bytes,
assuming that it's constant.  if lspci shows a different value,
i.e. 128 bytes, the driver should reserve the region according to the
pci resource.


Takashi


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Re: SonyPI module and via82xx sound driver

[Markus Gaugusch]

On Jan 5, Takashi Iwai <tiwai@suse.de> wrote:

> At Sun, 28 Dec 2003 20:47:07 +0100 (CET),
> Markus Gaugusch wrote:
> >
> > Hi,
> > The sonypi module uses IO Address 0x1080 - 0x1084B, which is in the range
> > of the via82xx sound driver (0x1000 - 0x10ff). Is it possible to exclude
> > the address range of the sonypi module in the via82xx driver? I'm pretty
> > sure that it isn't really used by ALSA :)
>
> check lspci -v whether the via chip requires really this whole
> region.  in the via82xx driver, we reserve the area with 256 bytes,
> assuming that it's constant.  if lspci shows a different value,
> i.e. 128 bytes, the driver should reserve the region according to the
> pci resource.
Unfortunately, the region is shown with 256 bytes:
00:07.5 Multimedia audio controller: VIA Technologies, Inc. VT82C686 AC97
Audio Controller (rev 50)
        Subsystem: Sony Corporation: Unknown device 80f6
        Flags: medium devsel, IRQ 5
        I/O ports at 1000 [size=256]
        I/O ports at 1c54 [size=4]
        I/O ports at 1c50 [size=4]

Is there any hope for a fix?

Markus
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Re: SonyPI module and via82xx sound driver

[Takashi Iwai]

At Mon, 5 Jan 2004 15:42:02 +0100 (CET),
Markus Gaugusch wrote:
> 
> On Jan 5, Takashi Iwai <tiwai@suse.de> wrote:
> 
> > At Sun, 28 Dec 2003 20:47:07 +0100 (CET),
> > Markus Gaugusch wrote:
> > >
> > > Hi,
> > > The sonypi module uses IO Address 0x1080 - 0x1084B, which is in the range
> > > of the via82xx sound driver (0x1000 - 0x10ff). Is it possible to exclude
> > > the address range of the sonypi module in the via82xx driver? I'm pretty
> > > sure that it isn't really used by ALSA :)
> >
> > check lspci -v whether the via chip requires really this whole
> > region.  in the via82xx driver, we reserve the area with 256 bytes,
> > assuming that it's constant.  if lspci shows a different value,
> > i.e. 128 bytes, the driver should reserve the region according to the
> > pci resource.
> Unfortunately, the region is shown with 256 bytes:
> 00:07.5 Multimedia audio controller: VIA Technologies, Inc. VT82C686 AC97
> Audio Controller (rev 50)
>         Subsystem: Sony Corporation: Unknown device 80f6
>         Flags: medium devsel, IRQ 5
>         I/O ports at 1000 [size=256]
>         I/O ports at 1c54 [size=4]
>         I/O ports at 1c50 [size=4]
> 
> Is there any hope for a fix?

well, i think the only good way is to add a check of the pci
subsystem id and change the area size according to it.

oh, another hack...
(this driver already has two different hacks with subsystem id
checks.)


Takashi


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Re: SonyPI module and via82xx sound driver

[Sergey Vlasov]

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On Sun, Dec 28, 2003 at 08:47:07PM +0100, Markus Gaugusch wrote:
> The sonypi module uses IO Address 0x1080 - 0x1084B, which is in the range
> of the via82xx sound driver (0x1000 - 0x10ff). Is it possible to exclude
> the address range of the sonypi module in the via82xx driver? I'm pretty
> sure that it isn't really used by ALSA :)

Does the sonypi module really work on your machine if snd-via82xx is
not loaded?  What is the exact machine model?

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