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SubjectRe: 2.6.12-rc3-mm3: ALSA broken ?

On 05.26, Andrew Morton wrote:
> "J.A. Magallon" <jamagallon@able.es> wrote:
> >
> >
> > On 05.08, J.A. Magallon wrote:
> > >
> > > On 05.05, Andrew Morton wrote:
> > > >
> > > > ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.12-rc3/2.6.12-rc3-mm3/
> > > >
> > > > - device mapper updates
> > > >
> > > > - more UML updates
> > > >
> > > > - -mm seems unusually stable at present.
> > > >
> > >
> > > Ehem, is ALSA broken ?
> > >
> > > I can't spread stereo output to 4 channel. More specific, I can't switch
> > > one of my female jacks between in and out.
> > >
> > > Long explanation: I have an
> > >
> > > 00:1f.5 Multimedia audio controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) AC'97 Audio Controller (rev 02)
> > >
> > > It has three outputs. One is always output, for normal stereo or front in 4
> > > channel. One other is LineIn/Back-for-4-channel. And the third is
> > > Mic/Bass-Center.
> > >
> > > In 2.6.11 I have two
> > > toggles in ALSA: 'Spread front to center...' and 'surround jack as input'
> > > Adjusting both I could get to duplicate the output in the Back jack.
> > > In 2.6.12-rc3-mm3 there is no way to get this working.
> > >
> >

>
> Could we have an update on this please? Do these problems persist in
> 2.6.12-rc5 and/or 2.6.12-rc5-mm1?
>

Finally I got it. There was a buglet in original patch. Working patch follows.
Verified in... just my box (intel onboard sound). Against rc5-mm1.

--- linux/sound/pci/ac97/ac97_patch.c 11 May 2005 11:00:17 -0000 1.82
+++ linux/sound/pci/ac97/ac97_patch.c 13 May 2005 09:35:19 -0000
@@ -1526,13 +1526,8 @@
.get = snd_ac97_ad1888_downmix_get,
.put = snd_ac97_ad1888_downmix_put
},
-#if 0
- AC97_SINGLE("Surround Jack as Input", AC97_AD_MISC, 12, 1, 0),
- AC97_SINGLE("Center/LFE Jack as Input", AC97_AD_MISC, 11, 1, 0),
-#else
AC97_SURROUND_JACK_MODE_CTL,
AC97_CHANNEL_MODE_CTL,
-#endif
};

static int patch_ad1888_specific(ac97_t *ac97)
@@ -1598,10 +1598,21 @@
}

static const snd_kcontrol_new_t snd_ac97_ad1985_controls[] = {
- AC97_SINGLE("Center/LFE Jack as Mic", AC97_AD_SERIAL_CFG, 9, 1, 0),
AC97_SINGLE("Exchange Center/LFE", AC97_AD_SERIAL_CFG, 3, 1, 0)
};

+static void ad1985_update_jacks(ac97_t *ac97)
+{
+ /* shared Line-In */
+ snd_ac97_update_bits(ac97, AC97_AD_MISC, 1 << 12,
+ is_shared_linein(ac97) ? 0 : 1 << 12);
+ /* shared Mic */
+ snd_ac97_update_bits(ac97, AC97_AD_MISC, 1 << 11,
+ is_shared_micin(ac97) ? 0 : 1 << 11);
+ snd_ac97_update_bits(ac97, AC97_AD_SERIAL_CFG, 1 << 9,
+ is_shared_micin(ac97) ? 0 : 1 << 9);
+}
+
static int patch_ad1985_specific(ac97_t *ac97)
{
int err;
@@ -1617,7 +1624,7 @@
#ifdef CONFIG_PM
.resume = ad18xx_resume,
#endif
- .update_jacks = ad1888_update_jacks,
+ .update_jacks = ad1985_update_jacks,
};

int patch_ad1985(ac97_t * ac97)

--
J.A. Magallon <jamagallon()able!es> \ Software is like sex:
werewolf!able!es \ It's better when it's free
Mandriva Linux release 2006.0 (Cooker) for i586
Linux 2.6.11-jam20 (gcc 4.0.0 (4.0.0-3mdk for Mandriva Linux release 2006.0))


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