Re: [PATCH 00/11] OMAP3 ISP BT.656 support

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

Hi Enrico,

On Wednesday 23 July 2014 15:57:51 Enrico wrote:
> On Wed, Jul 23, 2014 at 3:54 PM, Enrico wrote:

[snip]

> > You were right i was using the wrong binary, now the output is:
> > 
> > ...
> > - entity 5: OMAP3 ISP CCDC (3 pads, 9 links)
> >             type V4L2 subdev subtype Unknown flags 0
> >             device node name /dev/v4l-subdev2
> >         pad0: Sink
> >                 [fmt:UYVY2X8/720x625 field:interlaced]
> > ...
> >         pad1: Source
> >                 [fmt:UYVY/720x624 field:interlaced
> >                  crop.bounds:(0,0)/720x624
> >                  crop:(0,0)/720x624]
> > ...
> > - entity 16: tvp5150 1-005c (1 pad, 1 link)
> >              type V4L2 subdev subtype Unknown flags 0
> >              device node name /dev/v4l-subdev8
> >         pad0: Source
> >                 [fmt:UYVY2X8/720x625 field:interlaced]

That's surprising. Have you applied the tvp5150 patches from the 
omap3isp/bt656 branch ? The field should be hardcoded to V4L2_FIELD_ALTERNATE 
(reported as "alternate" by media-ctl), as the tvp5150 alternates between the 
top and bottom fields in consecutive frames. The CCDC input should then be 
configured to V4L2_FIELD_ALTERNATE as well, and the CCDC output to 
V4L2_FIELD_ALTERNATE ("alternate"), V4L2_FIELD_INTERLACED_TB ("interlaced-tb") 
or V4L2_FIELD_INTERLACED_BT ("interlaced-bt").

> > but i still get the same error:
> > 
> > root@igep00x0:~/field# ./yavta -f UYVY -n4 -s 720x624 -c100 /dev/video2
> > Device /dev/video2 opened.
> > Device `OMAP3 ISP CCDC output' on `media' is a video output (without
> > mplanes) device.
> > Video format set: UYVY (59565955) 720x624 (stride 1440) field none
> > buffer size 898560
> > Video format: UYVY (59565955) 720x624 (stride 1440) field none buffer
> > size 898560
> > 4 buffers requested.
> > length: 898560 offset: 0 timestamp type/source: mono/EoF
> > Buffer 0/0 mapped at address 0xb6d95000.
> > length: 898560 offset: 901120 timestamp type/source: mono/EoF
> > Buffer 1/0 mapped at address 0xb6cb9000.
> > length: 898560 offset: 1802240 timestamp type/source: mono/EoF
> > Buffer 2/0 mapped at address 0xb6bdd000.
> > length: 898560 offset: 2703360 timestamp type/source: mono/EoF
> > Buffer 3/0 mapped at address 0xb6b01000.
> > Unable to start streaming: Invalid argument (22).
> > 4 buffers released.
> 
> Same error adding field parameter to yavta:
> ./yavta -f UYVY -n4 -s 720x624 -c100 --field interlaced /dev/video2


-- 
Regards,

Laurent Pinchart