[alsa-devel] HDMI LPCM (7.1) with AMD/FGLRX

[Takashi Iwai]

At Mon, 8 Aug 2011 12:22:26 +0200,
Andrée 'Glaucous' wrote:
> 
> Turns out hda-verb is somewhat "out of my league".
> This is what I came up with, but I'm not sure what PARAMETER I should use in
> order to get something useful, I'm actually not sure
> if it's the correct nid either. If you could point me (even more) in the
> correct direction that'd be good, so that I can confirm it.
> 
> # hda-verb /dev/snd/hwC2D0 0x0 GET_PIN_SENSE VENDOR_ID

It should be like:

  # hda-verb /dev/snd/hwC2D0 0x03 GET_PIN_SENSE 0

The pin NID is 0x03.


Takashi

> 
> On 8 August 2011 11:52, Takashi Iwai <tiwai at suse.de> wrote:
> 
> > At Mon, 8 Aug 2011 11:32:43 +0200,
> > Andrée 'Glaucous' wrote:
> > >
> > > >>
> > > /proc/asound/Generic/codec#0
> > >
> > > Codec: ATI R6xx HDMI
> > > Address: 0
> > > AFG Function Id: 0x1 (unsol 0)
> > > Vendor Id: 0x1002aa01
> > > Subsystem Id: 0x00aa0100
> > > Revision Id: 0x100200
> > > No Modem Function Group found
> > > Default PCM:
> > >     rates [0x70]: 32000 44100 48000
> > >     bits [0x2]: 16
> > >     formats [0x5]: PCM AC3
> > > 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 0x201: Stereo Digital
> > >   Control: name="IEC958 Playback Con Mask", index=0, device=0
> > >   Control: name="IEC958 Playback Pro Mask", index=0, device=0
> > >   Control: name="IEC958 Playback Default", index=0, device=0
> > >   Control: name="IEC958 Playback Switch", index=0, device=0
> > >   Device: name="HDMI 0", type="HDMI", device=3
> > >   Converter: stream=1, channel=0
> > >   Digital: Enabled
> > >   Digital category: 0x0
> > > Node 0x03 [Pin Complex] wcaps 0x400381: Stereo Digital
> > >   Pincap 0x00000094: OUT Detect HDMI
> > >   Pin Default 0x18560010: [Jack] Digital Out at Int HDMI
> > >     Conn = Digital, Color = Unknown
> > >     DefAssociation = 0x1, Sequence = 0x0
> > >   Pin-ctls: 0x40: OUT
> > >   Unsolicited: tag=03, enabled=1
> > >   Connection: 1
> > >      0x02
> > > <<
> > >
> > > Since it's R6xx, it should be processed by patch_generic_hdmi().
> > >
> > > >>
> > > patch_hdmi.c
> > > ..
> > >
> > > id = 0x1002aa01, .name = "R6xx HDMI", .patch = patch_generic_hdmi
> > > <<
> > >
> > > Although this might not be proof enough, how best would I debug and
> > > check if it's using patch_generic_hdmi?
> >
> > Don't worry, if it has ELD file, it alone means it's generic-HDMI
> > parser.
> >
> >
> > > I also checked the ELD, while outputting video to HDMI (to make sure
> > > it's enabled) to the screen.
> > >
> > > (Generic is symlink to card2)
> > > >>
> > > /proc/asound/Generic/eld#0.0
> > >
> > > monitor_present               0
> > > eld_valid             1
> > > monitor_name
> > > connection_type               HDMI
> > > eld_version           [0x0] reserved
> > > edid_version          [0x0] no CEA EDID Timing Extension block present
> > > manufacture_id                0x0
> > > product_id            0x0
> > > port_id                       0x0
> > > support_hdcp          0
> > > support_ai            0
> > > audio_sync_delay      0
> > > speakers              [0x0]
> > > sad_count             0
> > > <<
> > >
> > > It seems to think that it's valid at least, but I doesn't seem to
> > > output any information about it (speaker count etc).
> >
> > The monitor isn't present, so it seems that it didn't get ELD info.
> > The information is taken from the pin-sense verb, so you can even get
> > it externally via hda-verb for confirming whether the information is
> > correct or not.
> >
> >
> > Takashi
> >
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