Re: [PATCH 0/2] Add VSP1 devices to DT for r8a7790 and r8a7791

[Laurent Pinchart <laurent.pinchart@ideasonboard.com>]

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Hi Cao Minh,

On Tuesday 30 September 2014 13:47:32 Cao Minh Hiep wrote:
> Hi Laurent,
> 
> We are testing the upstream linux version on Lager.
> I have tried to test VSP1 driver on r8a7790(Lager).
> But I don't know how to test it.
> Could you please tell the method to test it?

Sure.

I've attached the test script I use to configure the VSP1 pipeline to this e-
mail.

Syntax: vsp1.sh dev cmd [...]

Supported commands:
 - m2d | m2d-bru | m2d-crop | m2d-scale | m2m | m2m-crop | m2m-scale infmt 
outfmt
 - input index infmt
 - output index outfmt

"dev" should be the media device name without the /dev/ prefix. For the first 
VSP1 that would thus be "media0".

"cmd" is one of the values listed above. m2d stands for memory to display 
(using out of tree patches for the DRM driver) and m2m stands for memory to 
memory. The *-bru command configures the BRU to blend two inputs, the *-crop 
commands will perform cropping on the input and the -scale commands will 
include the scaler (UDS) in the pipeline.

All the m2d and m2m commands perform pipeline configuration. They take two 
arguments, the input format and the output format. They should both be one of 
BGR24, BGR32, ABGR32, XBGR32, RGB24, RGB32, ARGB32, XRGB32, RGB332, RGB555, 
RGB565, NV12M, NV16M, NV21M, NV61M, UYVY, VYUY, YUV420M, YUYV or YVYU.

The input and output commands will invoke yavta to capture images from a WPF 
(output) or stream images to an RPF (input). You can find a tarball with the 
test frames I use at http://www.ideasonboard.org/frame-reference.tar.bz2, but 
you can replace them with any binary test image.

The script requires the media-ctl and yavta utilities. The former is now part 
of the v4l-utils project, available at http://git.linuxtv.org/cgit.cgi/v4l-utils.git/. The latter can be found at http://git.ideasonboard.org/yavta.git.

I realize this probably lacks details, so please come back with any question 
you might have and I'll do my best to answer them.

-- 
Regards,

Laurent Pinchart

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