[alsa-devel] HDMI codec, way forward?

[Russell King - ARM Linux]

On Sun, Oct 18, 2015 at 09:43:29PM +0530, Vinod Koul wrote:
> On Sun, Oct 18, 2015 at 04:20:48PM +0100, Russell King - ARM Linux wrote:
> > On Sun, Oct 18, 2015 at 08:38:34PM +0530, Vinod Koul wrote:
> > > On Fri, Oct 16, 2015 at 02:37:17PM +0100, Russell King - ARM Linux wrote:
> > > > I've sent one proposal which uses a notifier to inform audio and CEC
> > > > drivers about state changes in the HDMI video side, and had precisely
> > > > zero replies to it - people seemed to prefer discussing stuff rather
> > > > than reviewing code and coming up with actual solutions.
> > > 
> > > Do you mind sending me a pointer to this series, I would like to read this
> > > up
> > 
> > It isn't a series.  It's a prototype patch that I posted in one of the
> > previous threads earlier this month:
> > 
> > Date: Tue, 6 Oct 2015 19:51:57 +0100
> > Subject: Re: [alsa-devel] [PATCH RFC V2 0/5] another generic audio hdmi codec
> >  proposal
> > Message-ID: <20151006185157.GT21513 at n2100.arm.linux.org.uk>
> > 
> > As I've said there, audio is not the only issue here, CEC also needs to
> > have access to much the same information that audio needs.
> > 
> > CEC needs to know two things: when the HDMI sink is disconnected, and
> > when the HDMI sink's EDID is available (specifically, CEC needs to know
> > the HDMI physical address for itself, which is passed as a number via
> > the EDID HDMI vendor block.)
> 
> Right but can I ask why you didn't try making video as component and then
> CEC, audio and others receive the notification over this. I don't know if
> there are any limitations to this since you wrote component bits you are the
> best person to comment...

I don't understand what you're suggesting; I've not been able to look at
anything you've suggested (as you've referred to it as URLs) and I'm up
to my eyeballs with horribly crappy crypto drivers on two different SoCs.

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