R-Car/Tests:rcar-vin

This document describes how to test the VIN and CSI2 (only present on Gen3) functionality on Renesas R-Car Gen2 and Gen3.

Get the patches
Ideally all the code to test VIN should be available in renesas-drivers, unfortunate they are not (yet).

For Gen2 testing all that is need is the rcar-vin driver itself and that will soon make its way to the kernel and renesas-drivers, it's currently sitting in media-next.

For Gen3 testing a rcar-vin driver with Gen3 support is needed together with drivers for CSI2 and ADV7482. Prototypes for all these components are public and will soon (hopefully) be available in renesas-drivers. In addition to the drivers DT needs to be set up to hookup these drivers.

To ease the testing all required patches for rcar-vin Gen3 (and Gen2 until it's available in upstream), CSI2, ADV7482, and DT modifications can be found at:

https://git.ragnatech.se/linux rcar-vin-elinux

Boot the kernel
You should see this on successful probe (this is from Gen3):

rcar-vin e6ef0000.video: Device registered as video22 rcar-vin e6ef1000.video: Device registered as video23 rcar-vin e6ef2000.video: Device registered as video24 rcar-vin e6ef3000.video: Device registered as video25 rcar-vin e6ef4000.video: Device registered as video26 rcar-vin e6ef5000.video: Device registered as video27 rcar-vin e6ef6000.video: Device registered as video28 rcar-vin e6ef7000.video: Device registered as video29

Use v4l-utils to test
The v4l2-utils (git://linuxtv.org/v4l-utils.git) provide two tools which are helpful in testing rcar-vin.

qv4l2
A GUI tool which lets you view the video from a rcar-vin device and test a wide range of different input parameters. Start the tool and specifying which video device you wish to operate on using the -d parameter, the video device number for the different video nodes can be observed in the boot log as shown above.


 * 1) qv4l2 -d 23

v4l2-compliance
A compliance test tool that verifies the drivers user-space interface. Start the tool and specifying which video device you wish to operate on using the -d parameter, the video device number for the different video nodes can be observed in the boot log as shown above. There are a few other options worth testing, --stream-all-formats (-f) and --streaming= (-s) will test that the driver actually can grab frames in different formats.

Driver Info: Driver name  : rcar_vin Card type    : R_Car_VIN Bus info     : platform:e6ef1000.video Driver version: 4.6.0 Capabilities : 0x85200001 Video Capture Read/Write Streaming Extended Pix Format Device Capabilities Device Caps  : 0x05200001 Video Capture Read/Write Streaming Extended Pix Format
 * 1) v4l2-compliance -d 23 -s -f

Compliance test for device /dev/video23 (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

Debug ioctls: test VIDIOC_DBG_G/S_REGISTER: OK (Not Supported) test VIDIOC_LOG_STATUS: OK

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: 2 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	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: 5 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		test Composing: OK		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		test VIDIOC_EXPBUF: OK

Test input 1:

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: 5 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		test Composing: OK		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		test VIDIOC_EXPBUF: OK

Test input 0:

Streaming ioctls: test read/write: OK	test MMAP: OK                                    	test USERPTR: OK (Not Supported) test DMABUF: Cannot test, specify --expbuf-device

Stream using all formats: test MMAP for Format NV16, Frame Size 720x576: Crop 720x576@0x0, Compose 720x576@0x0, Stride 736, Field None: OK  		Crop 720x576@0x0, Compose 720x576@0x0, Stride 736, Field Top: OK   		Crop 720x576@0x0, Compose 720x576@0x0, Stride 736, Field Bottom: OK   		Crop 720x576@0x0, Compose 720x576@0x0, Stride 736, Field Interlaced: OK   		Crop 720x576@0x0, Compose 720x576@0x0, Stride 736, Field Interlaced Top-Bottom: OK   		Crop 720x576@0x0, Compose 720x576@0x0, Stride 736, Field Interlaced Bottom-Top: OK   		Crop 6x4@0x0, Compose 720x576@0x0, Stride 736, Field Interlaced, SelTest: OK   		Crop 6x4@0x0, Compose 6x2@0x0, Stride 736, Field Interlaced, SelTest: OK   		Crop 720x576@0x0, Compose 6x2@0x0, Stride 736, Field Interlaced, SelTest: OK   		Crop 6x4@0x0, Compose 736x576@0x0, Stride 736, Field Interlaced, SelTest: OK   		Crop 720x576@0x0, Compose 736x576@0x0, Stride 736, Field Interlaced, SelTest: OK   	test MMAP for Format YUYV, Frame Size 736x576: Crop 720x576@0x0, Compose 720x576@0x0, Stride 1440, Field None: OK  		Crop 720x576@0x0, Compose 720x576@0x0, Stride 1440, Field Top: OK   		Crop 720x576@0x0, Compose 720x576@0x0, Stride 1440, Field Bottom: OK   		Crop 720x576@0x0, Compose 720x576@0x0, Stride 1440, Field Interlaced: OK   		Crop 720x576@0x0, Compose 720x576@0x0, Stride 1440, Field Interlaced Top-Bottom: OK   		Crop 720x576@0x0, Compose 720x576@0x0, Stride 1440, Field Interlaced Bottom-Top: OK   		Crop 6x4@0x0, Compose 720x576@0x0, Stride 1440, Field Interlaced, SelTest: OK   		Crop 6x4@0x0, Compose 6x2@0x0, Stride 1440, Field Interlaced, SelTest: OK   		Crop 720x576@0x0, Compose 6x2@0x0, Stride 1440, Field Interlaced, SelTest: OK   	test MMAP for Format UYVY, Frame Size 720x576: Crop 720x576@0x0, Compose 720x576@0x0, Stride 1440, Field None: OK  		Crop 720x576@0x0, Compose 720x576@0x0, Stride 1440, Field Top: OK   		Crop 720x576@0x0, Compose 720x576@0x0, Stride 1440, Field Bottom: OK   		Crop 720x576@0x0, Compose 720x576@0x0, Stride 1440, Field Interlaced: OK   		Crop 720x576@0x0, Compose 720x576@0x0, Stride 1440, Field Interlaced Top-Bottom: OK   		Crop 720x576@0x0, Compose 720x576@0x0, Stride 1440, Field Interlaced Bottom-Top: OK   	test MMAP for Format RGBP, Frame Size 720x576: Crop 720x576@0x0, Compose 720x576@0x0, Stride 1440, Field None: OK  		Crop 720x576@0x0, Compose 720x576@0x0, Stride 1440, Field Top: OK   		Crop 720x576@0x0, Compose 720x576@0x0, Stride 1440, Field Bottom: OK   		Crop 720x576@0x0, Compose 720x576@0x0, Stride 1440, Field Interlaced: OK   		Crop 720x576@0x0, Compose 720x576@0x0, Stride 1440, Field Interlaced Top-Bottom: OK   		Crop 720x576@0x0, Compose 720x576@0x0, Stride 1440, Field Interlaced Bottom-Top: OK   	test MMAP for Format XR15, Frame Size 720x576: Crop 720x576@0x0, Compose 720x576@0x0, Stride 1440, Field None: OK  		Crop 720x576@0x0, Compose 720x576@0x0, Stride 1440, Field Top: OK   		Crop 720x576@0x0, Compose 720x576@0x0, Stride 1440, Field Bottom: OK   		Crop 720x576@0x0, Compose 720x576@0x0, Stride 1440, Field Interlaced: OK   		Crop 720x576@0x0, Compose 720x576@0x0, Stride 1440, Field Interlaced Top-Bottom: OK   		Crop 720x576@0x0, Compose 720x576@0x0, Stride 1440, Field Interlaced Bottom-Top: OK   	test MMAP for Format XR24, Frame Size 720x576: Crop 720x576@0x0, Compose 720x576@0x0, Stride 2880, Field None: OK  		Crop 720x576@0x0, Compose 720x576@0x0, Stride 2880, Field Top: OK   		Crop 720x576@0x0, Compose 720x576@0x0, Stride 2880, Field Bottom: OK   		Crop 720x576@0x0, Compose 720x576@0x0, Stride 2880, Field Interlaced: OK   		Crop 720x576@0x0, Compose 720x576@0x0, Stride 2880, Field Interlaced Top-Bottom: OK   		Crop 720x576@0x0, Compose 720x576@0x0, Stride 2880, Field Interlaced Bottom-Top: OK

Total: 110, Succeeded: 110, Failed: 0, Warnings: 0