Moving to #intel-gfx Hi, Glad that I could help you! On 2019-11-05 at 21:56:28 +0000, Voldman, Mikhail wrote: > Hello Ramalingam, > > Thank you for quick response. > Your information is very helpful. > But can you elaborate: > > In your product, If you want to enable the HDCP always based on the sink capability, set > the "Content protection" to DESIRED state along with desired content > type. [MV] should I set DESIRED protection level as DRM master? This needs additional kernel patch for your product to set the desired state as default state of the property at the creation. > > As these are properties, non DRM Masters can only read them. can set > them. [MV] do you mean: " non DRM Masters can only read them, but can't set them." Yes. > Can I use MEI interface to control HDCP? Not needed if you set the default state as desired. -Ram > > Mikhail Voldman > System Architect > > Teledyne LeCroy, Protocol Solutions Group > 2111 Big Timber Road > Elgin, IL 60123 > Note new email address: mikhail.voldman@xxxxxxxxxxxx > 847-888-0450 x136 > > Send me a file securely > > > -----Original Message----- > From: Ramalingam C <ramalingam.c@xxxxxxxxx> > Sent: Monday, November 4, 2019 10:44 PM > To: Voldman, Mikhail <Mikhail.Voldman@xxxxxxxxxxxx> > Cc: Kurmi Suresh Kumar <suresh.kumar.kurmi@xxxxxxxxx> > Subject: Re: i915 HDCP 2.2 TX encryption on Teledyne test instrument > > ---External Email--- > > On 2019-11-04 at 20:42:49 +0000, Voldman, Mikhail wrote: > > Hello Ramalingam, > > > > We exchanged number of e-mails few months ago regarding Linux i915 HDCP 2.2 encryption support in the new Teledyne video test instrument. > > Thanks for your help we were able to control HDCP 2.2 encryption as DRM masters. > > > > Unfortunately our product requirement specified than we need to enable HDCP 2.2 always if attached monitor capabilities shows HDCP 2.2 support. > > Also i915 based TX required to execute HDCP 2.2 re-authentication if Sink HPD is detected. > > > > Is current Intel i915 kernel driver implementation can support desired functionality? Do you have plans to support this? > > "HDCP always" will never be an upstream solution. always userspace > driven. > > In your product, If you want to enable the HDCP always based on the sink capability, set > the "Content protection" to DESIRED state along with desired content > type. > > As these are properties, non DRM Masters can only read them. can set > them. > > Hope you are unblocked. All the best! > > -Ram > > > > Are current i915 allow control HDCP encryption by NOT DRM master application? > > > > Any suggestion or advice by Intel HDCP 2.2 experts will be really appreciated. > > > > Best Regards, > > > > Mikhail Voldman > > System Architect > > [cid:image001.gif@01D2D0A7.919320A0] > > Teledyne LeCroy, Protocol Solutions Group > > 2111 Big Timber Road > > Elgin, IL 60123 > > Note new email address: mikhail.voldman@xxxxxxxxxxxx<mailto:mikhail.voldman@xxxxxxxxxxxx> > > 847-888-0450 x136 > > > > Send me a file securely<https://transfereast.teledyne.com/filedrop/mikhail.voldman@xxxxxxxxxxxx> > > > > _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
