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Date: Fri, 20 Jan 2017 14:56:35 +0100 From: Hans Verkuil <hverkuil@...all.nl> To: Steve Longerbeam <slongerbeam@...il.com>, robh+dt@...nel.org, mark.rutland@....com, shawnguo@...nel.org, kernel@...gutronix.de, fabio.estevam@....com, linux@...linux.org.uk, mchehab@...nel.org, nick@...anahar.org, markus.heiser@...marIT.de, p.zabel@...gutronix.de, laurent.pinchart+renesas@...asonboard.com, bparrot@...com, geert@...ux-m68k.org, arnd@...db.de, sudipm.mukherjee@...il.com, minghsiu.tsai@...iatek.com, tiffany.lin@...iatek.com, jean-christophe.trotin@...com, horms+renesas@...ge.net.au, niklas.soderlund+renesas@...natech.se, robert.jarzmik@...e.fr, songjun.wu@...rochip.com, andrew-ct.chen@...iatek.com, gregkh@...uxfoundation.org Cc: devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, linux-media@...r.kernel.org, devel@...verdev.osuosl.org Subject: Re: [PATCH v3 12/24] add mux and video interface bridge entity functions On 01/07/2017 03:11 AM, Steve Longerbeam wrote: > From: Philipp Zabel <p.zabel@...gutronix.de> > > Signed-off-by: Philipp Zabel <p.zabel@...gutronix.de> > --- > Documentation/media/uapi/mediactl/media-types.rst | 22 ++++++++++++++++++++++ > include/uapi/linux/media.h | 6 ++++++ > 2 files changed, 28 insertions(+) > > diff --git a/Documentation/media/uapi/mediactl/media-types.rst b/Documentation/media/uapi/mediactl/media-types.rst > index 3e03dc2..023be29 100644 > --- a/Documentation/media/uapi/mediactl/media-types.rst > +++ b/Documentation/media/uapi/mediactl/media-types.rst > @@ -298,6 +298,28 @@ Types and flags used to represent the media graph elements > received on its sink pad and outputs the statistics data on > its source pad. > > + - .. row 29 > + > + .. _MEDIA-ENT-F-MUX: > + > + - ``MEDIA_ENT_F_MUX`` I would prefer MEDIA_ENT_F_VID_MUX since this is video specific. Regards, Hans > + > + - Video multiplexer. An entity capable of multiplexing must have at > + least two sink pads and one source pad, and must pass the video > + frame(s) received from the active sink pad to the source pad. Video > + frame(s) from the inactive sink pads are discarded. > + > + - .. row 30 > + > + .. _MEDIA-ENT-F-VID-IF-BRIDGE: > + > + - ``MEDIA_ENT_F_VID_IF_BRIDGE`` > + > + - Video interface bridge. A video interface bridge entity must have at > + least one sink pad and one source pad. It receives video frame(s) on > + its sink pad in one bus format (HDMI, eDP, MIPI CSI-2, ...) and > + converts them and outputs them on its source pad in another bus format > + (eDP, MIPI CSI-2, parallel, ...). > > .. tabularcolumns:: |p{5.5cm}|p{12.0cm}| > > diff --git a/include/uapi/linux/media.h b/include/uapi/linux/media.h > index 4890787..08a8bfa 100644 > --- a/include/uapi/linux/media.h > +++ b/include/uapi/linux/media.h > @@ -105,6 +105,12 @@ struct media_device_info { > #define MEDIA_ENT_F_PROC_VIDEO_STATISTICS (MEDIA_ENT_F_BASE + 0x4006) > > /* > + * Switch and bridge entitites > + */ > +#define MEDIA_ENT_F_MUX (MEDIA_ENT_F_BASE + 0x5001) > +#define MEDIA_ENT_F_VID_IF_BRIDGE (MEDIA_ENT_F_BASE + 0x5002) > + > +/* > * Connectors > */ > /* It is a responsibility of the entity drivers to add connectors and links */ >
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