On 2010.07.26 20:36:49 +0200, David Härdeman wrote: > Hi, > > I'm trying to play with some different AVI InfoFrame settings for the > HDMI output on my DG45FC (G45 Intel graphics hardware, HDMI connector on > the motherboard) but I can't seem to find any references to it in the > i915 driver or in the programming specs. > > drivers/gpu/drm/i915/intel_sdvo.c has code for setting an avi infoframe > for hdmi outputs, but it doesn't seem to be used on my board (I tried > sprinkling some printk's in there). I guess it's only for ADD2 type > addon boards? > > So far I'm guessing that drivers/gpu/drm/i915/intel_hdmi.c is > responsible but there is no code in there that deals with the avi > infoframe and I haven't been able to find anything in the programming > manuals from the intel linux graphics website. > > Could anyone point me in the right direction? > > And on a related note, does anyone know if the hardware supports HDMI > CEC and where I might find the relevant hardware documentation? >
We don't have AVI infoframe support for native HDMI port now. Looks our public doc missed register info for VIDEO_DIP_CTL/DATA, that I assume should be used for that. If you have requirement to support that maybe for some special sink device, I can try to ask if that info should be updated in the spec. -- Open Source Technology Center, Intel ltd. $gpg --keyserver wwwkeys.pgp.net --recv-keys 4D781827
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