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From: "Ville Syrjälä" <ville.syrjala@linux.intel.com>
To: Jose Abreu <Jose.Abreu@synopsys.com>
Cc: Carlos Palminha <CARLOS.PALMINHA@synopsys.com>,
	dri-devel@lists.freedesktop.org
Subject: Re: [RFC 2/5] drm: uapi: Add HDMI 2.0 aspect ratio flags and HDMI 2.0+ mode flag
Date: Thu, 23 Mar 2017 17:16:10 +0200	[thread overview]
Message-ID: <20170323151610.GU31595@intel.com> (raw)
In-Reply-To: <8ab717c521c9d6aded259ecdedd61373c3c27e37.1490203284.git.joabreu@synopsys.com>

On Wed, Mar 22, 2017 at 05:35:58PM +0000, Jose Abreu wrote:
> Add the HDMI 2.0 aspect ratio flags (64:27 and 256:135) and a new
> flag which will signal userspace that this is a HDMI 2.0+ mode. It
> is expected that these new flags will not be exported to userspace
> unless client asks to.

W.r.t. the aspect ratio userspace story, there was some discussion
on #dri-devel recently about extending the xrandr protocol for 3d stereo
support. If that is going to happen then it might make sense to try
and get the aspect ratio stuff also included at the same time so
that we would only have to deal with one protocol bump.

> 
> Signed-off-by: Jose Abreu <joabreu@synopsys.com>
> Cc: Carlos Palminha <palminha@synopsys.com>
> Cc: dri-devel@lists.freedesktop.org
> ---
>  include/uapi/drm/drm_mode.h | 9 +++++++++
>  1 file changed, 9 insertions(+)
> 
> diff --git a/include/uapi/drm/drm_mode.h b/include/uapi/drm/drm_mode.h
> index 8c67fc0..62e679c 100644
> --- a/include/uapi/drm/drm_mode.h
> +++ b/include/uapi/drm/drm_mode.h
> @@ -89,6 +89,8 @@
>  #define DRM_MODE_PICTURE_ASPECT_NONE		0
>  #define DRM_MODE_PICTURE_ASPECT_4_3		1
>  #define DRM_MODE_PICTURE_ASPECT_16_9		2
> +#define DRM_MODE_PICTURE_ASPECT_64_27		3
> +#define DRM_MODE_PICTURE_ASPECT_256_135		4
>  
>  /* Aspect ratio flag bitmask (4 bits 22:19) */
>  #define DRM_MODE_FLAG_PIC_AR_MASK		(0x0F<<19)
> @@ -98,6 +100,13 @@
>  			(DRM_MODE_PICTURE_ASPECT_4_3<<19)
>  #define  DRM_MODE_FLAG_PIC_AR_16_9 \
>  			(DRM_MODE_PICTURE_ASPECT_16_9<<19)
> +#define  DRM_MODE_FLAG_PIC_AR_64_27 \
> +			(DRM_MODE_PICTURE_ASPECT_64_27<<19)
> +#define  DRM_MODE_FLAG_PIC_AR_256_135 \
> +			(DRM_MODE_PICTURE_ASPECT_256_135<<19)
> +
> +/* HDMI 2.0+ mode flag: will only be set if client supports it */
> +#define DRM_MODE_FLAG_HDMI2			(1<<23)
>  
>  /* DPMS flags */
>  /* bit compatible with the xorg definitions. */
> -- 
> 1.9.1
> 
> 
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel

-- 
Ville Syrjälä
Intel OTC
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel

  reply	other threads:[~2017-03-23 15:16 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-03-22 17:35 [RFC 0/5] HDMI 2.0+ video modes handling in DRM core Jose Abreu
2017-03-22 17:35 ` [RFC 1/5] drm: Add HDMI 2.0+ features exposing knob Jose Abreu
2017-03-23  7:22   ` Daniel Vetter
2017-03-23 10:44     ` Jose Abreu
2017-03-23 11:00       ` Daniel Vetter
2017-03-27 13:47         ` Jose Abreu
2017-03-28  6:17           ` Daniel Vetter
2017-03-22 17:35 ` [RFC 2/5] drm: uapi: Add HDMI 2.0 aspect ratio flags and HDMI 2.0+ mode flag Jose Abreu
2017-03-23 15:16   ` Ville Syrjälä [this message]
2017-03-23 18:54     ` Jose Abreu
2017-03-23 19:00       ` Ville Syrjälä
2017-03-23 19:09         ` Jose Abreu
2017-03-22 17:35 ` [RFC 3/5] drm: edid: Add HDMI 2.0 CEA video modes Jose Abreu
2017-03-23  8:11   ` Andrzej Hajda
2017-03-23 11:04     ` Jose Abreu
2017-03-23 11:17       ` Andrzej Hajda
2017-03-23 11:35         ` Jose Abreu
2017-03-23 14:50           ` Andrzej Hajda
2017-03-23 11:07     ` Sharma, Shashank
2017-03-23 15:26       ` Sharma, Shashank
2017-03-22 17:36 ` [RFC 4/5] drm: connector: Add hdmi2_allowed flag Jose Abreu
2017-03-22 17:36 ` [RFC 5/5] drm: Do not expose HDMI 2.0+ modes to userspace/drivers unless asked to Jose Abreu
2017-03-23  7:25   ` Daniel Vetter
2017-03-23 11:02     ` Jose Abreu
2017-03-22 18:13 ` [RFC 0/5] HDMI 2.0+ video modes handling in DRM core Jose Abreu
2017-03-22 18:57   ` Sharma, Shashank
2017-03-23 10:37     ` Jose Abreu
2017-03-23 10:56       ` Sharma, Shashank

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