[alsa-devel] HD-audio regression after commit 34588709af61be1550b4e2bcee5c85d0ac4f34d4

[Takashi Iwai]

At Sat, 19 Jan 2013 10:39:39 +0800,
Raymond Yau wrote:
> 
> [1  <text/plain; UTF-8 (7bit)>]
> > >
> > > > > It's already in the repository. Now none of the input sources work
> for
> > > > > me: front-mic, rear-mic nor input line. Alsa-info output is
> attached.
> > > > >
> > > > > commit 77ecb70ef5b022a1ee80169583753d85d7a9c396
> > > >
> > > > Hmm, through a quick glance, all look OK.
> > > >
> > >
> > > It is strange that three input source are line but audio selector are
> not
> > > the same
> > >
> > > Simple mixer control 'Input Source',0
> > >   Capabilities: cenum
> > >   Items: 'Front Mic' 'Rear Mic' 'Line' 'CD'
> > >   Item0: 'Line'
> > > Simple mixer control 'Input Source',1
> > >   Capabilities: cenum
> > >   Items: 'Front Mic' 'Rear Mic' 'Line' 'CD'
> > >   Item0: 'Line'
> > > Simple mixer control 'Input Source',2
> > >   Capabilities: cenum
> > >   Items: 'Front Mic' 'Rear Mic' 'Line' 'CD'
> > >   Item0: 'Line'
> > >
> > > Node 0x0c [Audio Selector] wcaps 0x30010d: Stereo Amp-Out
> > >   Control: name="Capture Volume", index=0, device=0
> > >     ControlAmp: chs=3, dir=Out, idx=0, ofs=0
> > >   Control: name="Capture Switch", index=0, device=0
> > >     ControlAmp: chs=3, dir=Out, idx=0, ofs=0
> > >   Amp-Out caps: ofs=0x27, nsteps=0x36, stepsize=0x05, mute=1
> > >   Amp-Out vals:  [0x36 0x36]
> > >   Connection: 11
> > >      0x38 0x39 0x3a* 0x3b 0x3c 0x18 0x24 0x25 0x3d 0x20 0x1f
> > > Node 0x0d [Audio Selector] wcaps 0x30010d: Stereo Amp-Out
> > >   Control: name="Capture Volume", index=1, device=0
> > >     ControlAmp: chs=3, dir=Out, idx=0, ofs=0
> > >   Control: name="Capture Switch", index=1, device=0
> > >     ControlAmp: chs=3, dir=Out, idx=0, ofs=0
> > >   Amp-Out caps: ofs=0x27, nsteps=0x36, stepsize=0x05, mute=1
> > >   Amp-Out vals:  [0x36 0x36]
> > >   Connection: 10
> > >      0x38 0x39* 0x3a 0x3b 0x3c 0x18 0x24 0x25 0x3d 0x20
> > > Node 0x0e [Audio Selector] wcaps 0x30010d: Stereo Amp-Out
> > >   Control: name="Capture Volume", index=2, device=0
> > >     ControlAmp: chs=3, dir=Out, idx=0, ofs=0
> > >   Control: name="Capture Switch", index=2, device=0
> > >     ControlAmp: chs=3, dir=Out, idx=0, ofs=0
> > >   Amp-Out caps: ofs=0x27, nsteps=0x36, stepsize=0x05, mute=1
> > >   Amp-Out vals:  [0x36 0x36]
> > >   Connection: 10
> > >      0x38 0x39* 0x3a 0x3b 0x3c 0x18 0x24 0x25 0x3d 0x20
> >
> > Good catch.  It's a recent regression.
> > I fixed now with the patch below.
> >
> > test/hda-gen-parser and master branches are updated now with this and
> > other fixes.
> 
> >
> >
> > thanks,
> >
> > Takashi
> >
> > ---
> > From: Takashi Iwai <tiwai at suse.de>
> > Subject: [PATCH] ALSA: hda - Fix the wrong adc_idx for capture source
> >
> > The patch "ALSA: hda - fix wrong adc_idx in generic parser" fixed the
> > adc_idx for the capture volume and capture switch controls.  But also
> > modified the adc_idx retrieval for the capture source controls
> > wrongly.  As multiple capture source controls are created in a single
> > shot with counts > 1, the id.index doesn't contain the real value.
> > The real index has to be taken via snd_ctl_get_ioffidx() as in the
> > original code.
> >
> > This patch reverts the fixes partially to recover from the
> > regression.
> >
> Refer to commit
> 
> http://git.kernel.org/?p=linux/kernel/git/tiwai/sound-unstable.git;a=commit;h=1c70a583417e8db1e1d5069d7651ba294e9499de
> 
> Do you mean user have to specify hint
> 
> 1) mixer_nid to analog the aa-path for creating those Mic/line playback
> volume/switch ?

mixer_nid should be set in each caller, i.e. patch_ad1988().
It's just missing there.  Of course, you can set it explicitly via a
hint string by yourself later.

> 2) add_stereo_mix_input for the missing input source "mix"

This also depends on the codec and preference.
I guess it'd make sense to enable it as default for AD1988x.


Takashi