linux-kernel - Re: [PATCH v2 0/2] media: platform: Add Aspeed Video Engine Driver

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Message-ID: <3fe3a367-5e63-446b-faba-fa6ac7a007cd@xs4all.nl>
Date:   Fri, 14 Sep 2018 08:59:23 +0200
From:   Hans Verkuil <hverkuil@...all.nl>
To:     Eddie James <eajames@...ux.vnet.ibm.com>,
        linux-kernel@...r.kernel.org
Cc:     mark.rutland@....com, devicetree@...r.kernel.org,
        linux-aspeed@...ts.ozlabs.org, openbmc@...ts.ozlabs.org,
        robh+dt@...nel.org, mchehab@...nel.org,
        linux-media@...r.kernel.org, andrew@...id.au, joel@....id.au
Subject: Re: [PATCH v2 0/2] media: platform: Add Aspeed Video Engine Driver

On 09/13/2018 09:29 PM, Eddie James wrote:
> The Video Engine (VE) embedded in the Aspeed AST2400 and AST2500 SOCs
> can capture and compress video data from digital or analog sources. With
> the Aspeed chip acting as a service processor, the Video Engine can
> capture the host processor graphics output.
> 
> This series adds a V4L2 driver for the VE, providing a read() interface
> only. The driver triggers the hardware to capture the host graphics output
> and compress it to JPEG format.
> 
> 
> v4l2-compliance output:
> 
> v4l2-compliance SHA   : not available

There should be a SHA here. "not available" indicates that you didn't compile
from the git repository directly, and now I do not know how old this compliance
test is. Always compile from the latest git repo, never use a version from e.g.
a distro as they tend to be old and missing tests.

It would be great if you can do this and reply with the new compliance output.

Thanks!

	Hans

> 
> Driver Info:
> 	Driver name   : aspeed-video
> 	Card type     : Aspeed Video Engine
> 	Bus info      : platform:aspeed-video
> 	Driver version: 4.18.7
> 	Capabilities  : 0x81200001
> 		Video Capture
> 		Read/Write
> 		Extended Pix Format
> 		Device Capabilities
> 	Device Caps   : 0x01200001
> 		Video Capture
> 		Read/Write
> 		Extended Pix Format
> 
> Compliance test for device /dev/video0 (not using libv4l2):
> 
> Required ioctls:
> 	test VIDIOC_QUERYCAP: OK
> 
> Allow for multiple opens:
> 	test second video open: OK
> 	test VIDIOC_QUERYCAP: OK
> 	test VIDIOC_G/S_PRIORITY: OK
> 	test for unlimited opens: OK
> 
> Debug ioctls:
> 	test VIDIOC_DBG_G/S_REGISTER: OK (Not Supported)
> 	test VIDIOC_LOG_STATUS: OK (Not Supported)
> 
> Input ioctls:
> 	test VIDIOC_G/S_TUNER/ENUM_FREQ_BANDS: OK (Not Supported)
> 	test VIDIOC_G/S_FREQUENCY: OK (Not Supported)
> 	test VIDIOC_S_HW_FREQ_SEEK: OK (Not Supported)
> 	test VIDIOC_ENUMAUDIO: OK (Not Supported)
> 	test VIDIOC_G/S/ENUMINPUT: OK
> 	test VIDIOC_G/S_AUDIO: OK (Not Supported)
> 	Inputs: 1 Audio Inputs: 0 Tuners: 0
> 
> Output ioctls:
> 	test VIDIOC_G/S_MODULATOR: OK (Not Supported)
> 	test VIDIOC_G/S_FREQUENCY: OK (Not Supported)
> 	test VIDIOC_ENUMAUDOUT: OK (Not Supported)
> 	test VIDIOC_G/S/ENUMOUTPUT: OK (Not Supported)
> 	test VIDIOC_G/S_AUDOUT: OK (Not Supported)
> 	Outputs: 0 Audio Outputs: 0 Modulators: 0
> 
> Input/Output configuration ioctls:
> 	test VIDIOC_ENUM/G/S/QUERY_STD: OK (Not Supported)
> 	test VIDIOC_ENUM/G/S/QUERY_DV_TIMINGS: OK (Not Supported)
> 	test VIDIOC_DV_TIMINGS_CAP: OK (Not Supported)
> 	test VIDIOC_G/S_EDID: OK (Not Supported)
> 
> Test input 0:
> 
> 	Control ioctls:
> 		test VIDIOC_QUERY_EXT_CTRL/QUERYMENU: OK
> 		test VIDIOC_QUERYCTRL: OK
> 		test VIDIOC_G/S_CTRL: OK
> 		test VIDIOC_G/S/TRY_EXT_CTRLS: OK
> 		test VIDIOC_(UN)SUBSCRIBE_EVENT/DQEVENT: OK
> 		test VIDIOC_G/S_JPEGCOMP: OK (Not Supported)
> 		Standard Controls: 3 Private Controls: 0
> 
> 	Format ioctls:
> 		test VIDIOC_ENUM_FMT/FRAMESIZES/FRAMEINTERVALS: OK
> 		test VIDIOC_G/S_PARM: OK
> 		test VIDIOC_G_FBUF: OK (Not Supported)
> 		test VIDIOC_G_FMT: OK
> 		test VIDIOC_TRY_FMT: OK
> 		test VIDIOC_S_FMT: OK
> 		test VIDIOC_G_SLICED_VBI_CAP: OK (Not Supported)
> 		test Cropping: OK (Not Supported)
> 		test Composing: OK (Not Supported)
> 		test Scaling: OK (Not Supported)
> 
> 	Codec ioctls:
> 		test VIDIOC_(TRY_)ENCODER_CMD: OK (Not Supported)
> 		test VIDIOC_G_ENC_INDEX: OK (Not Supported)
> 		test VIDIOC_(TRY_)DECODER_CMD: OK (Not Supported)
> 
> 	Buffer ioctls:
> 		test VIDIOC_REQBUFS/CREATE_BUFS/QUERYBUF: OK (Not Supported)
> 		test VIDIOC_EXPBUF: OK (Not Supported)
> 
> Test input 0:
> 
> Streaming ioctls:
> 	test read/write: OK
> 	test MMAP: OK (Not Supported)
> 	test USERPTR: OK (Not Supported)
> 	test DMABUF: OK (Not Supported)
> 
> 
> Total: 47, Succeeded: 47, Failed: 0, Warnings: 0
> 
> 
> Changes since v1:
>  - Removed le32_to_cpu calls for JPEG header data
>  - Reworked v4l2 ioctls to be compliant.
>  - Added JPEG controls
>  - Updated devicetree docs according to Rob's suggestions.
>  - Added myself to MAINTAINERS
> 
> Eddie James (2):
>   dt-bindings: media: Add Aspeed Video Engine binding documentation
>   media: platform: Add Aspeed Video Engine driver
> 
>  .../devicetree/bindings/media/aspeed-video.txt     |   26 +
>  MAINTAINERS                                        |    8 +
>  drivers/media/platform/Kconfig                     |    8 +
>  drivers/media/platform/Makefile                    |    1 +
>  drivers/media/platform/aspeed-video.c              | 1469 ++++++++++++++++++++
>  5 files changed, 1512 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/media/aspeed-video.txt
>  create mode 100644 drivers/media/platform/aspeed-video.c
>