On 2011-09-01 07:26, Laurent Pinchart wrote:
Hi Gary,
On Thursday 01 September 2011 14:50:59 Gary Thomas wrote:
On 2011-09-01 03:51, Enrico wrote:
On Wed, Aug 31, 2011 at 6:33 PM, Laurent Pinchart wrote:
On
http://git.linuxtv.org/pinchartl/media.git/shortlog/refs/heads/omap3isp
- omap3isp-next (sorry for not mentioning it), but the patch set was
missing a patch. I've sent a v2.
Thanks Laurent, i can confirm it is a step forward. With your tree and
patches (and my tvp5150 patch) i made a step forward:
Setting up link 16:0 -> 5:0 [1]
Setting up link 5:1 -> 6:0 [1]
Setting up format UYVY 720x628 on pad tvp5150 2-005c/0
Format set: UYVY 720x628
Setting up format UYVY 720x628 on pad OMAP3 ISP CCDC/0
Format set: UYVY 720x628
I'm at nearly the same point, but I'm getting a couple of strange messages:
# media-ctl -r -l '"tvp5150m1 2-005c":0->"OMAP3 ISP CCDC":0[1], "OMAP3 ISP
CCDC":1->"OMAP3 ISP CCDC output":0[1]' Resetting all links to inactive
Setting up link 16:0 -> 5:0 [1]
Setting up link 5:1 -> 6:0 [1]
# media-ctl -f '"tvp5150m1 2-005c":0[UYVY 720x480], "OMAP3 ISP CCDC":0[UYVY
720x480], "OMAP3 ISP CCDC":1[UYVY 720x480]' Setting up format UYVY 720x480
on pad tvp5150m1 2-005c/0
Format set: unknown 720x480
Setting up format unknown 720x480 on pad OMAP3 ISP CCDC/0
Format set: unknown 720x480
Setting up format UYVY 720x480 on pad OMAP3 ISP CCDC/0
Format set: UYVY 720x480
Setting up format UYVY 720x480 on pad OMAP3 ISP CCDC/1
Format set: UYVY 720x480
# yavta -f UYVY -s 720x480 -n 6 --capture=6 -F /dev/video2
Device /dev/video2 opened.
Device `OMAP3 ISP CCDC output' on `media' is a video capture device.
Video format set: UYVY (59565955) 720x480 buffer size 691200
Video format: UYVY (59565955) 720x480 buffer size 691200
6 buffers requested.
length: 691200 offset: 0
Buffer 0 mapped at address 0x40211000.
length: 691200 offset: 692224
Buffer 1 mapped at address 0x402dc000.
length: 691200 offset: 1384448
Buffer 2 mapped at address 0x4047f000.
length: 691200 offset: 2076672
Buffer 3 mapped at address 0x40614000.
length: 691200 offset: 2768896
Buffer 4 mapped at address 0x40792000.
Buffer 5 mapped at address 0x40854000.
Unable to start streaming: 32.
What does 'Format set: unknown 720x480' mean from media-ctl?
That probably means that media-ctl got compiled against a different media
controller API version than the one running on your system. Make sure you set
the --with-kernel-headers= to the path to kernel headers for the kernel
running on your system.
To make sure, I just rebuilt 'media-ctl' against my latest kernel (headers).
I'm using a OpenEmbedded derivative (Yocto) so this is all automatic.
# bitbake virtual/kernel media-ctl -c cleansstate
# bitbake virtual/kernel
# bitbake media-ctl
Sadly, I still get the same error.
Why 'Unable to start streaming: 32' - is this an EPIPE error?
That means the pipeline hasn't been configured properly. Either the pipeline
is broken, or formats on two ends of a link don't match.
Probably because of the unknown (above). Here's what the pertinent nodes say:
- entity 5: OMAP3 ISP CCDC (3 pads, 9 links)
type V4L2 subdev subtype Unknown
device node name /dev/v4l-subdev2
pad0: Input [UYVY 720x480]
<- 'OMAP3 ISP CCP2':pad1 []
<- 'OMAP3 ISP CSI2a':pad1 []
<- 'tvp5150m1 2-005c':pad0 [ACTIVE]
pad1: Output [UYVY 720x480]
-> 'OMAP3 ISP CCDC output':pad0 [ACTIVE]
-> 'OMAP3 ISP resizer':pad0 []
pad2: Output [UYVY 720x479]
-> 'OMAP3 ISP preview':pad0 []
-> 'OMAP3 ISP AEWB':pad0 [IMMUTABLE,ACTIVE]
-> 'OMAP3 ISP AF':pad0 [IMMUTABLE,ACTIVE]
-> 'OMAP3 ISP histogram':pad0 [IMMUTABLE,ACTIVE]
- entity 16: tvp5150m1 2-005c (1 pad, 1 link)
type V4L2 subdev subtype Unknown
device node name /dev/v4l-subdev8
pad0: Output [unknown 720x480 (1,1)/720x480]
-> 'OMAP3 ISP CCDC':pad0 [ACTIVE]
Ideas where to look for the 'unknown' mode?
Now the problem is that i can't get a capture with yavta, it blocks on
the VIDIO_DQBUF ioctl. Probably something wrong in my patch.
I tried also to route it through the resizer but nothing changes.
Is it normal that --enum-formats returns this?
Device /dev/video2 opened.
Device `OMAP3 ISP CCDC output' on `media' is a video capture device.
- Available formats:
Video format: (00000000) 0x0 buffer size 0
--
------------------------------------------------------------
Gary Thomas | Consulting for the
MLB Associates | Embedded world
------------------------------------------------------------
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