[alsa-devel] Hda-intel: AC_VERB_SET_PIN_WIDGET_CONTROL appears to do nothing for HDMI device

[Takashi Iwai]

At Sun, 9 Mar 2008 13:05:39 +0000,
Ben Firshman wrote:
> 
> It appears that on boot, nothing gets set, but if I reload the module  
> it works:
> 
> ben at mythfrontend:~$ cat /proc/asound/card0/codec#1
> Codec: Generic 1095 SI1390 HDMI
> Address: 1
> Vendor Id: 0x10951390
> Subsystem Id: 0xffffffff
> Revision Id: 0x100000
> No Modem Function Group found
> Default PCM:
>      rates [0x0]:
>      bits [0x0]:
>      formats [0x0]:
> Default Amp-In caps: N/A
> Default Amp-Out caps: N/A
> GPIO: io=0, o=0, i=0, unsolicited=0, wake=0
> Node 0x02 [Audio Output] wcaps 0x6211: Stereo Digital
>    Converter: stream=0, channel=0
>    Digital: Enabled Copyright GenLevel
>    Digital category: 0x0
>    PCM:
>      rates [0x7f0]: 32000 44100 48000 88200 96000 176400 192000
>      bits [0x1e]: 16 20 24 32
>      formats [0x5]: PCM AC3
> Node 0x03 [Pin Complex] wcaps 0x40738d: Stereo Digital Amp-Out
>    Amp-Out caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
>    Amp-Out vals:  [0x00 0x00]
>    Pincap 0x0894: OUT Detect R/L
>    Pin Default 0x98460010: [Fixed] SPDIF Out at Int HDMI
>      Conn = Digital, Color = Unknown
>      DefAssociation = 0x1, Sequence = 0x0
>    Pin-ctls: 0x40: OUT
>    Unsolicited: tag=00, enabled=0
>    Connection: 1
>       0x02
> ben at mythfrontend:~$
> 
> The unmuting looks like it's working too (Amp-Out vals:  [0x00 0x00]).  
> I'm still not getting any sound though - my amp just says  
> "Detecting...".
> 
> Is the GPIO line significant? As far as I can tell from the docs, that  
> just means there are no GPIOs.

I don't think it's GPIO.  Which graphic chip is on AppleTV?
if it's Nvidia, we have little chance.  But, if it's an Intel
on-board, it might work.  Some people reported HDMI works in a certain
level (not perfectly at all though).

Anyway, you can try my latest tree available at git.kernel.org
   git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-unstable-2.6.git
and
   git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/alsa-driver-build-unstable.git

The former is the kernel tree and the latter is alsa-driver build
tree.  Run utils/setup-alsa-kernel KERNEL_DIR on alsa-driver tree to
set up the build with sound-unstable kernel git tree (see INSTALL for
details).

The ready-to-be-built snapshot tarball is available at
   http://ftp.kernel.org/pub/linux/kernel/people/tiwai/snapshot/


Takashi

> 
> Ben
> 
> On 9 Mar 2008, at 00:10, Ben Firshman wrote:
> 
> > This is on 1.0.16. Forgive me if I appear clueless, I have only been
> > working on this for the past few hours.
> >
> > In an attempt to get HDMI audio working on the AppleTV, I have added
> > this line to the presets in patch_atihdmi.c:
> >
> > { .id = 0x10951390, .name = "SI1390 HDMI", .patch = patch_atihdmi },
> >
> > The device is detected fine:
> >
> > ben at mythfrontend:~$ aplay -l
> > **** List of PLAYBACK Hardware Devices ****
> > card 0: Intel [HDA Intel], device 0: ALC882 Analog [ALC882 Analog]
> >   Subdevices: 1/1
> >   Subdevice #0: subdevice #0
> > card 0: Intel [HDA Intel], device 1: ALC882 Digital [ALC882 Digital]
> >   Subdevices: 1/1
> >   Subdevice #0: subdevice #0
> > card 0: Intel [HDA Intel], device 3: ATI HDMI [ATI HDMI]
> >   Subdevices: 1/1
> >   Subdevice #0: subdevice #0
> > ben at mythfrontend:~$
> >
> > and I can send audio to the device, but it doesn't work. I presume
> > this because this is doing nothing:
> >
> > static struct hda_verb atihdmi_basic_init[] = {
> > 	/* enable digital output on pin widget */
> > 	{ 0x03, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT },
> > 	{} /* terminator */
> > };
> >
> > ben at mythfrontend:~$ cat /proc/asound/card0/codec#1
> > Codec: Generic 1095 SI1390 HDMI
> > Address: 1
> > Vendor Id: 0x10951390
> > Subsystem Id: 0xffffffff
> > Revision Id: 0x100000
> > No Modem Function Group found
> > Default PCM:
> >     rates [0x0]:
> >     bits [0x0]:
> >     formats [0x0]:
> > Default Amp-In caps: N/A
> > Default Amp-Out caps: N/A
> > GPIO: io=0, o=0, i=0, unsolicited=0, wake=0
> > Node 0x02 [Audio Output] wcaps 0x6211: Stereo Digital
> >   Converter: stream=0, channel=0
> >   Digital:
> >   Digital category: 0x0
> >   PCM:
> >     rates [0x7f0]: 32000 44100 48000 88200 96000 176400 192000
> >     bits [0x1e]: 16 20 24 32
> >     formats [0x5]: PCM AC3
> > Node 0x03 [Pin Complex] wcaps 0x40738d: Stereo Digital Amp-Out
> >   Amp-Out caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
> >   Amp-Out vals:  [0x80 0x80]
> >   Pincap 0x0894: OUT Detect R/L
> >   Pin Default 0x98460010: [Fixed] SPDIF Out at Int HDMI
> >     Conn = Digital, Color = Unknown
> >     DefAssociation = 0x1, Sequence = 0x0
> >   Pin-ctls: 0x00:
> >   Unsolicited: tag=00, enabled=0
> >   Connection: 1
> >      0x02
> >
> > "Pin-ctls: 0x00:" should be reading "Pin-ctls: 0x40: OUT" should it
> > not? What is wrong?
> >
> > Thanks
> >
> > Ben
> >
> > _______________________________________________
> > Alsa-devel mailing list
> > Alsa-devel at alsa-project.org
> > http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
> 
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